1.
National Register of Historic Places
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The National Register of Historic Places is the United States federal governments official list of districts, sites, buildings, structures, and objects deemed worthy of preservation. The passage of the National Historic Preservation Act in 1966 established the National Register, of the more than one million properties on the National Register,80,000 are listed individually. The remainder are contributing resources within historic districts, each year approximately 30,000 properties are added to the National Register as part of districts or by individual listings. For most of its history the National Register has been administered by the National Park Service and its goals are to help property owners and interest groups, such as the National Trust for Historic Preservation, coordinate, identify, and protect historic sites in the United States. While National Register listings are mostly symbolic, their recognition of significance provides some financial incentive to owners of listed properties, protection of the property is not guaranteed. During the nomination process, the property is evaluated in terms of the four criteria for inclusion on the National Register of Historic Places, the application of those criteria has been the subject of criticism by academics of history and preservation, as well as the public and politicians. Occasionally, historic sites outside the proper, but associated with the United States are also listed. Properties can be nominated in a variety of forms, including individual properties, historic districts, the Register categorizes general listings into one of five types of properties, district, site, structure, building, or object. National Register Historic Districts are defined geographical areas consisting of contributing and non-contributing properties, some properties are added automatically to the National Register when they become administered by the National Park Service. These include National Historic Landmarks, National Historic Sites, National Historical Parks, National Military Parks/Battlefields, National Memorials, on October 15,1966, the Historic Preservation Act created the National Register of Historic Places and the corresponding State Historic Preservation Offices. Initially, the National Register consisted of the National Historic Landmarks designated before the Registers creation, approval of the act, which was amended in 1980 and 1992, represented the first time the United States had a broad-based historic preservation policy. To administer the newly created National Register of Historic Places, the National Park Service of the U. S. Department of the Interior, hartzog, Jr. established an administrative division named the Office of Archeology and Historic Preservation. Hartzog charged OAHP with creating the National Register program mandated by the 1966 law, ernest Connally was the Offices first director. Within OAHP new divisions were created to deal with the National Register, the first official Keeper of the Register was William J. Murtagh, an architectural historian. During the Registers earliest years in the late 1960s and early 1970s, organization was lax and SHPOs were small, understaffed, and underfunded. A few years later in 1979, the NPS history programs affiliated with both the U. S. National Parks system and the National Register were categorized formally into two Assistant Directorates. Established were the Assistant Directorate for Archeology and Historic Preservation and the Assistant Directorate for Park Historic Preservation, from 1978 until 1981, the main agency for the National Register was the Heritage Conservation and Recreation Service of the United States Department of the Interior. In February 1983, the two assistant directorates were merged to promote efficiency and recognize the interdependency of their programs, jerry L. Rogers was selected to direct this newly merged associate directorate
2.
Oak Park, Illinois
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Oak Park is a village adjacent to the West Side of the city of Chicago in Cook County, Illinois, United States. Pace buses serve the Village for travel within its borders and connecting to neighboring suburbs, as of the 2010 United States Census the Village had a total population of 51,878. Oak Park was settled beginning in the 1830s, with rapid growth later in the 19th century and it incorporated in 1902, breaking off from Cicero. Development was spurred by railroads and street cars connecting the village to jobs in Chicago, famed architect Frank Lloyd Wright and his wife settled here in 1889. Population peaked at 66,015 in 1940, smaller families led to falling population in the same number of homes and apartments. In the 1960s, Oak Park faced the challenge of racial integration, devising many strategies to integrate rather than re-segregate the village, Oak Park includes three historic districts for the historic homes, Ridgeland, Frank Lloyd Wright and Seward Gunderson, reflecting the focus on historic preservation. In 1835, Joseph Kettlestrings, an immigrant from England, purchased 172 acres of land just west of Chicago for a farm and their home. Once their children were born, they moved to Chicago for the schools in 1843, more farmers and settlers had entered the area. Their land was called by several names locally, including Oak Ridge, by 1850, the Galena and Chicago Union Railroad was constructed as far as Elgin, Illinois, and passed through the settlement area. In the 1850s the land on which Oak Park sits was part of the new Chicago suburb, the town of Cicero. The population of the area boomed during the 1870s, with Chicago residents resettling in Cicero following the Great Chicago Fire of 1871 and the expansion of railroads and street cars to the area. In 1872, when Oak Park received its own depot on the Chicago and Northwestern Railway. As Chicago grew from a center to a national metropolis Oak Park expanded – from 500 residents in 1872 to 1,812 in 1890, to 9,353 in 1900, to 20,911 in 1910. Oak Park thus emerged as a leading Chicago suburb, one of the first streetcar lines was the Chicago, Harlem, & Batavia “dummy” line, which ran approximately along the present-day route of the Eisenhower Expressway. The “dummy” trains used a steam locomotive with a false cladding designed to conceal most of the moving parts. This line first began operation in 1881, but did not provide direct service to downtown Chicago until June 1888. A more extensive network throughout Oak Park was opened in 1890. In the future village of Oak Park, this system ran east-west on Madison Street and Lake Street, streetcar service was discontinued in 1947, to be replaced by buses
3.
Frank Lloyd Wright
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Frank Lloyd Wright was an American architect, interior designer, writer, and educator, who designed more than 1,000 structures,532 of which were completed. Wright believed in designing structures that were in harmony with humanity and its environment and this philosophy was best exemplified by Fallingwater, which has been called the best all-time work of American architecture. Wright was a leader of the Prairie School movement of architecture and developed the concept of the Usonian home and his creative period spanned more than 70 years. In addition to his houses, Wright designed original and innovative offices, churches, schools, skyscrapers, hotels, museums and he often designed interior elements for these buildings as well, including furniture and stained glass. Wright wrote 20 books and many articles and was a lecturer in the United States. His colorful personal life made headlines, most notably for the 1914 fire. Wright was recognized in 1991 by the American Institute of Architects as the greatest American architect of all time, Frank Lloyd Wright was born Frank Lincoln Wright in the farming town of Richland Center, Wisconsin, United States, in 1867. His father, William Carey Wright, was an orator, music teacher, occasional lawyer, William Wright met and married Anna Lloyd Jones, a county school teacher, the previous year when he was employed as the superintendent of schools for Richland County. Originally from Massachusetts, William Wright had been a Baptist minister, Anna was a member of the large, prosperous and well-known Lloyd Jones family of Unitarians, who had emigrated from Wales to Spring Green, Wisconsin. One of Annas brothers was Jenkin Lloyd Jones, who would become an important figure in the spread of the Unitarian faith in the Western United States, both of Wrights parents were strong-willed individuals with idiosyncratic interests that they passed on to him. According to his biography, his mother declared when she was expecting that her first child would grow up to build beautiful buildings and she decorated his nursery with engravings of English cathedrals torn from a periodical to encourage the infants ambition. In 1870 the family moved to Weymouth, Massachusetts, where William ministered to a small congregation, in 1876, Anna visited the Centennial Exhibition in Philadelphia where she saw an exhibit of educational blocks created by Friedrich Wilhelm August Fröbel. The blocks, known as Froebel Gifts, were the foundation of his innovative kindergarten curriculum, Anna, a trained teacher, was excited by the program and bought a set with which young Wright spent much time playing. The blocks in the set were geometrically shaped and could be assembled in various combinations to form three-dimensional compositions, the Wright family struggled financially in Weymouth and returned to Spring Green, Wisconsin, where the supportive Lloyd Jones clan could help William find employment. They settled in Madison, where William taught music lessons and served as the secretary to the newly formed Unitarian society, although William was a distant parent, he shared his love of music, especially the works of Johann Sebastian Bach, with his children. Soon after Wright turned 14, his parents separated, Anna had been unhappy for some time with Williams inability to provide for his family and asked him to leave. The divorce was finalized in 1885 after William sued Anna for lack of physical affection, William left Wisconsin after the divorce and Wright claimed he never saw his father again. At this time he changed his name from Lincoln to Lloyd in honor of his mothers family
4.
Modern architecture
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Modern architecture or modernist architecture is a term applied to a group of styles of architecture which emerged in the first half of the 20th century and became dominant after World War II. The revolution in materials came first, with the use of cast iron, plate glass, the cast plate glass process was invented in 1848, allowing the manufacture of very large windows. The Crystal Palace by Joseph Paxton at the Great Exhibition of 1851 was an example of iron and plate glass construction, followed in 1864 by the first glass. These developments together led to the first steel-framed skyscraper, the ten-story Home Insurance Building in Chicago, the iron frame construction of the Eiffel Tower, then the tallest structure in the world, captured the imagination of millions of visitors to the 1889 Paris Universal Exposition. French industrialist François Coignet was the first to use iron-reinforced concrete, in 1853 Coignet built the first iron reinforced concrete structure, a four story house in the suburbs of Paris. Another important technology for the new architecture was electric light, which reduced the inherent danger of fires caused by gas in the 19th century. This break with the past was particularly urged by the architectural theorist, for each function its material, for each material its form and its ornament. This book influenced a generation of architects, including Louis Sullivan, Victor Horta, Hector Guimard, at the end of the 19th century, a few architects began to challenge the traditional Beaux Arts and Neoclassical styles that dominated architecture in Europe and the United States. The Glasgow School of Art 1896-99) designed by Charles Rennie MacIntosh, had a facade dominated by large bays of windows. The Art Nouveau style was launched in the 1890s by Victor Horta in Belgium and Hector Guimard in France, it introduced new styles of decoration, based on vegetal and floral forms. In 1903-1904 in Paris Auguste Perret and Henri Sauvage began to use reinforced concrete, previously used for industrial structures. Between 1910 and 1913, Auguste Perret built the Théâtre des Champs-Élysées, because of the concrete construction, no columns blocked the spectators view of the stage. Otto Wagner, in Vienna, was another pioneer of the new style, in his book Moderne Arkchtekture he had called for a more rationalist style of architecture, based on modern life. Wagner declared his intention to express the function of the building in its exterior, the reinforced concrete exterior was covered with plaques of marble attached with bolts of polished aluminum. The interior was purely functional and spare, an open space of steel, glass. The Viennese architect Adolf Loos also began removing any ornament from his buildings and his Steiner House, in Vienna, was an example of what he called rationalist architecture, it had a simple stucco rectangual facade with square windows and no ornament. The fame of the new movement, which known as the Vienna Secession spread beyond Austria. Josef Hoffmann, a student of Wagner, constructed a landmark of early modernist architecture and this residence, built of brick covered with Norwegian marble, was composed of geometric blocks, wings and a tower
5.
Church (building)
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A church building, often simply called a church, is a building used for Christian religious activities, particularly worship services. The term in its sense is most often used by Christians to refer to their religious buildings. In traditional Christian architecture, the church is arranged in the shape of a Christian cross. When viewed from plan view the longest part of a cross is represented by the aisle, towers or domes are often added with the intention of directing the eye of the viewer towards the heavens and inspiring church visitors. The earliest identified Christian church was a church founded between 233 and 256. During the 11th through 14th centuries, a wave of building of cathedrals, a cathedral is a church, usually Roman Catholic, Anglican, Oriental Orthodox or Eastern Orthodox, housing the seat of a bishop. In standard Greek usage, the word ecclesia was retained to signify both a specific edifice of Christian worship, and the overall community of the faithful. This usage was retained in Latin and the languages derived from Latin, as well as in the Celtic languages. In the Germanic and some Slavic languages, the word kyriak-ós/-ē/-ón was adopted instead, in Old English the sequence of derivation started as cirice, then churche, and eventually church in its current pronunciation. German Kirche, Scottish kirk, Russian церковь, etc. are all similarly derived, according to the New Testament, the earliest Christians did not build church buildings. Instead, they gathered in homes or in Jewish worship places like the Second Temple or synagogues, the earliest archeologically identified Christian church is a house church, the Dura-Europos church, founded between 233 and 256. During the 11th through 14th centuries, a wave of building of cathedrals, in addition to being a place of worship, the cathedral or parish church was used by the community in other ways. It could serve as a place for guilds or a hall for banquets. Mystery plays were performed in cathedrals, and cathedrals might also be used for fairs. The church could be used as a place to thresh and store grain, a common architecture for churches is the shape of a cross. These churches also often have a dome or other large vaulted space in the interior to represent or draw attention to the heavens. Other common shapes for churches include a circle, to represent eternity, or an octagon or similar star shape, another common feature is the spire, a tall tower on the west end of the church or over the crossing. The Latin word basilica was used to describe a Roman public building
6.
Reinforced concrete
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The reinforcement is usually, though not necessarily, steel reinforcing bars and is usually embedded passively in the concrete before the concrete sets. Reinforcing schemes are designed to resist tensile stresses in particular regions of the concrete that might cause unacceptable cracking and/or structural failure. Modern reinforced concrete can contain varied reinforcing materials made of steel, Reinforced concrete may also be permanently stressed, so as to improve the behaviour of the final structure under working loads. In the United States, the most common methods of doing this are known as pre-tensioning and post-tensioning, durability in the concrete environment, irrespective of corrosion or sustained stress for example. François Coignet was a French industrialist of the century, a pioneer in the development of structural. Coignet was the first to use iron-reinforced concrete as a technique for constructing building structures, in 1853 Coignet built the first iron reinforced concrete structure, a four story house at 72 rue Charles Michels in the suburbs of Paris. Coignets descriptions of reinforcing concrete suggests that he did not do it for means of adding strength to the concrete, in 1854, English builder William B. Wilkinson reinforced the concrete roof and floors in the two-storey house he was constructing. His positioning of the reinforcement demonstrated that, unlike his predecessors, in 1877, Monier was granted another patent for a more advanced technique of reinforcing concrete columns and girders with iron rods placed in a grid pattern. Though Monier undoubtedly knew reinforcing concrete would improve its inner cohesion, before 1877 the use of concrete construction, though dating back to the Roman Empire and reintroduced in the mid to late 1800s, was not yet a proven scientific technology. His work played a role in the evolution of concrete construction as a proven. Without Hyatts work, more dangerous trial and error methods would have largely depended on for the advancement in the technology. G. A. Wayss was a German civil engineer and a pioneer of the iron, in 1879 Wayss bought the German rights to Moniers patents and in 1884 started the first commercial use for reinforced concrete in his firm Wayss & Freytag. Up until the 1890s Wayss and his firm greatly contributed to the advancement of Moniers system of reinforcing, ernest L. Ransome was an English-born engineer and early innovator of the reinforced concrete techniques in the end of the 19th century. With the knowledge of reinforced concrete developed during the previous 50 years, ransomes key innovation was to twist the reinforcing steel bar improving bonding with the concrete. Gaining increasing fame from his concrete constructed buildings Ransome was able to build two of the first reinforced concrete bridges in North America, one of the first concrete buildings constructed in the United States, was a private home, designed by William Ward in 1871. The home was designed to be fireproof for his wife, one of the first skyscrapers made with reinforced concrete was the 16-storey Ingalls Building in Cincinnati, constructed in 1904. Many different types of structures and components of structures can be built using reinforced concrete including slabs, walls, beams, columns, foundations, frames, Reinforced concrete can be classified as precast or cast-in-place concrete. Designing and implementing the most efficient floor system is key to creating optimal building structures, small changes in the design of a floor system can have significant impact on material costs, construction schedule, ultimate strength, operating costs, occupancy levels and end use of a building
7.
Ludwig Mies van der Rohe
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Ludwig Mies van der Rohe was a German-American architect. He is commonly referred to and was addressed as Mies, his surname, along with Le Corbusier, Walter Gropius and Frank Lloyd Wright, he is widely regarded as one of the pioneers of modernist architecture. Mies, like many of his post-World War I contemporaries, sought to establish a new style that could represent modern times just as Classical. He created an influential twentieth-century architectural style, stated with clarity and simplicity. His mature buildings made use of materials such as industrial steel. He strove toward an architecture with a framework of structural order balanced against the implied freedom of unobstructed free-flowing open space. He called his buildings skin and bones architecture and he sought an objective approach that would guide the creative process of architectural design, but he was always concerned with expressing the spirit of the modern era. He is often associated with his quotation of the aphorisms, less is more, Mies was born March 27,1886 in Aachen, Germany. He worked in his fathers stone carving shop and at several design firms before he moved to Berlin. Mies served as manager of the Embassy of the German Empire in Saint Petersburg under Behrens. His talent was recognized and he soon began independent commissions. He began his independent professional career designing upper-class homes, joining the movement seeking a return to the purity of early 19th-century Germanic domestic styles and he rejected the eclectic and cluttered classical styles so common at the turn of the 20th century as irrelevant to the modern times. In 1913, Mies married Adele Auguste Bruhn, the daughter of a wealthy industrialist, during his military service in 1917, Mies fathered a son out of wedlock. In 1925 Mies began a relationship with designer Lilly Reich that ended when he moved to the United States, from 1940 until his death, artist Lora Marx was his primary companion. Mies carried on a relationship with sculptor and art collector Mary Callery for whom he designed an artists studio in Huntington, Long Island. He also was rumored to have a relationship with Edith Farnsworth. Mariannes son Dirk Lohan studied under, and later worked for, after World War I, Mies began, while still designing traditional neoclassical homes, a parallel experimental effort. He joined his avant-garde peers in the search for a new style that would be suitable for the modern industrial age
8.
Frank Gehry
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Frank Owen Gehry, CC is a Canadian-born American architect, residing in Los Angeles. A number of his buildings, including his private residence, have become world-renowned attractions and it was his private residence in Santa Monica, California, that jump-started his career. Gehry is also the designer of the future National Dwight D. Eisenhower Memorial, Gehry was born Frank Owen Goldberg on February 28,1929, in Toronto, Ontario, to parents Sadie Thelma and Irving Goldberg. His father was born in Brooklyn, New York, to Russian Jewish parents, a creative child, he was encouraged by his grandmother, with whom he would build little cities out of scraps of wood. With these scraps from her husbands store, she entertained him for hours, building imaginary houses. His use of corrugated steel, chain link fencing, unpainted plywood and he would spend time drawing with his father, while his mother introduced him to the world of art. So the creative genes were there, Gehry says, but my father thought I was a dreamer, I wasnt gonna amount to anything. It was my mother who thought I was just reticent to do things and he was given the Hebrew name Ephraim by his grandfather, but only used it at his bar mitzvah. In 1947, his family immigrated to the United States settling in California, Gehry got a job driving a delivery truck, and studied at Los Angeles City College, eventually to graduate from the University of Southern Californias School of Architecture. During that time, he became a member of Alpha Epsilon Pi, according to Gehry, I was a truck driver in L. A. going to City College, and I tried radio announcing, which I wasnt very good at. I tried chemical engineering, which I wasnt very good at and didnt like and you know, somehow I just started wracking my brain about, What do I like. And I remembered art, that I loved going to museums and I loved looking at paintings and those things came from my mother, who took me to concerts and museums. I remembered Grandma and the blocks, and just on a hunch, Gehry graduated with a Bachelor of Architecture degree from USC in 1954. After graduating from college, he spent time away from the field of architecture in other jobs. In the fall of 1956, he moved his family to Cambridge and he left before completing the program, disheartened and underwhelmed. Gehry returned to Los Angeles to work for Victor Gruen Associates, in 1957 he was given the chance to design and construct his first private residence at the age of 28, with friend and old classmate Greg Walsh. Built in Idyllwild, California for his wife Anita’s family neighbor Melvin David, The David Cabin, completed in 1958, beams protrude from the exterior sides and exposed, unfinished ceiling beams are prominent features. In 1961, he moved to Paris where he worked for architects Pereira, in 1962, Gehry established a practice in Los Angeles which became Frank Gehry and Associates in 1967 and then Gehry Partners in 2001
9.
Dollar
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Dollar is the name of more than twenty currencies, including those of the United States, Canada, Australia, Taiwan, Hong Kong, Singapore, New Zealand, Liberia, Jamaica and Namibia. Generally, one dollar is divided into one hundred cents, on 15 January 1520, the Czech Kingdom of Bohemia began minting coins from silver mined locally in Joachimsthal and marked on reverse with the Czech lion. The coins were called joachimsthaler, which became shortened in common usage to thaler or taler, the German name Joachimsthal literally means Joachims valley or Joachims dale. A later Dutch coin also depicting a lion was called the leeuwendaler or leeuwendaalder, the Dutch Republic produced these coins to accommodate its booming international trade. The leeuwendaler circulated throughout the Middle East and was imitated in several German and Italian cities and this coin was also popular in the Dutch East Indies and in the Dutch New Netherland Colony. It was in throughout the Thirteen Colonies during the 17th. The currencies of Romania and Bulgaria are, to this day, the modern American-English pronunciation of dollar is still remarkably close to the 17th century Dutch pronunciation of daler. Some well-worn examples circulating in the Colonies were known as dog dollars, Spanish pesos – having the same weight and shape – came to be known as Spanish dollars. By the time of the American Revolution, Spanish dollars gained significance because they backed paper money authorized by the individual colonies, common in the Thirteen Colonies, Spanish dollars were even legal tender in one colony, Virginia. On April 2,1792, U. S. Secretary of the Treasury Alexander Hamilton reported to Congress the precise amount of found in Spanish dollar coins in common use in the states. As a result, the United States dollar was defined as a unit of silver weighing 371 4/16th grains. It was specified that the money of account of the United States should be expressed in those same dollars or parts thereof, in an act passed in January 1837, the dollars alloy was set at 15%. Subsequent coins would contain the amount of pure silver as previously. On February 21,1853, the quantity of silver in the coins was reduced. However, the dollars constitutional meaning has remained unchanged through the years, silver was mostly removed from U. S. coinage by 1965 and the dollar became a free-floating fiat currency without a commodity backing defined in terms of real gold or silver. The US Mint continues to make silver $1-denomination coins, but these are not intended for general circulation, there are many quotes in the plays of William Shakespeare referring to dollars as money. This might be supported by a reference to the sum of ten dollars in Macbeth. In 1804, a British five-shilling piece, or crown, was sometimes called dollar and it was an overstruck Spanish eight real coin, the original of which was known as a Spanish dollar
10.
Furniture
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Furniture refers to movable objects intended to support various human activities such as seating, eating, and sleeping. Furniture is also used to hold objects at a convenient height for work, Furniture can be a product of design and is considered a form of decorative art. In addition to furnitures functional role, it can serve a symbolic or religious purpose and it can be made from many materials, including metal, plastic, and wood. Furniture can be using a variety of woodworking joints which often reflect the local culture. People have been using natural objects, such as stumps, rocks and moss. Archaeological research shows that from around 30,000 years ago, people began constructing and carving their own furniture, using wood, stone, early furniture from this period is known from artwork such as a Venus figurine found in Russia, depicting the goddess on a throne. The first surviving extant furniture is in the homes of Skara Brae in Scotland, complex construction techniques such as joinery began in the early dynastic period of ancient Egypt. This era saw constructed wooden pieces, including stools and tables, sometimes decorated with valuable metals or ivory. The evolution of furniture design continued in ancient Greece and ancient Rome, with thrones being commonplace as well as the klinai, multipurpose couches used for relaxing, eating, the furniture of the Middle Ages was usually heavy, oak, and ornamented. Furniture design expanded during the Italian Renaissance of the fourteenth and fifteenth century, the seventeenth century, in both Southern and Northern Europe, was characterized by opulent, often gilded Baroque designs. The nineteenth century is defined by revival styles. The first three-quarters of the century are often seen as the march towards Modernism. One unique outgrowth of post-modern furniture design is a return to natural shapes and textures, the English word furniture is derived from the French word fourniture, the noun form of fournir, which means to supply or provide. Thus fourniture in French means supplies or provisions, the practice of using natural objects as rudimentary pieces of furniture likely dates to the beginning of human civilisation. Early humans are likely to have used tree stumps as seats, rocks as rudimentary tables, during the late palaeolithic or early neolithic period, from around 30,000 years ago, people began constructing and carving their own furniture, using wood, stone, and animal bones. The earliest evidence for the existence of constructed furniture is a Venus figurine found at the Gagarino site in Russia, a similar statue of a Mother Goddess was found in Catal Huyuk in Turkey, dating to between 6000 and 5500 BC. The inclusion of such a seat in the figurines implies that these were already common artefacts of that age, a range of unique stone furniture has been excavated in Skara Brae, a Neolithic village in Orkney, Scotland. Each house shows a degree of sophistication and was equipped with an extensive assortment of stone furniture, ranging from cupboards, dressers and beds to shelves, stone seats
11.
Stained glass
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The term stained glass can refer to coloured glass as a material or to works created from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches, mosques, although traditionally made in flat panels and used as windows, the creations of modern stained glass artists also include three-dimensional structures and sculpture. Modern vernacular usage has extended the term stained glass to include domestic leadlight. As a material stained glass is glass that has been coloured by adding metallic salts during its manufacture. The coloured glass is crafted into stained glass windows in which pieces of glass are arranged to form patterns or pictures, held together by strips of lead. Painted details and yellow stain are used to enhance the design. The term stained glass is applied to windows in which the colours have been painted onto the glass. Stained glass, as an art and a craft, requires the artistic skill to conceive an appropriate and workable design, and the engineering skills to assemble the piece. A window must fit snugly into the space for which it is made, must resist wind and rain, Many large windows have withstood the test of time and remained substantially intact since the late Middle Ages. In Western Europe they constitute the form of pictorial art to have survived. In this context, the purpose of a glass window is not to allow those within a building to see the world outside or even primarily to admit light. For this reason stained glass windows have been described as illuminated wall decorations, Stained glass is still popular today, but often referred to as art glass. It is prevalent in luxury homes, commercial buildings, and places of worship, artists and companies are contracted to create beautiful art glass ranging from domes, windows, backsplashes, etc. During the late Medieval period, glass factories were set up there was a ready supply of silica. Silica requires very high heat to become molten, something not all glass factories were able to achieve, such materials as potash, soda, and lead can be added to lower the melting temperature. Other substances, such as lime, are added to rebuild the weakened network, Glass is coloured by adding metallic oxide powders or finely divided metals while it is in a molten state. Copper oxides produce green or bluish green, cobalt makes deep blue, much modern red glass is produced using copper, which is less expensive than gold and gives a brighter, more vermilion shade of red. Glass coloured while in the pot in the furnace is known as pot metal glass
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Heritage Documentation Programs
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These programs were established to document historic places in the United States. Records consist of measured drawings, archival photographs, and written reports, in 1933, NPS established the Historic American Buildings Survey following a proposal by Charles E. Peterson, a young landscape architect in the agency. It was founded as a constructive program for architects, draftsmen. Guided by field instructions from Washington, D. C. the first HABS recorders were tasked with documenting a representative sampling of Americas architectural heritage, by creating an archive of historic architecture, HABS provided a database of primary source material and documentation for the then-fledgling historic preservation movement. Earlier private projects included the White Pine Series of Architectural Monographs, notable HABS photographers include Jack Boucher, who worked for the project for over 40 years. The Historic American Engineering Record program was founded on January 10,1969, by NPS, HAER documents historic mechanical and engineering artifacts. Since the advent of HAER, the program is typically called HABS/HAER. Today much of the work of HABS/HAER is done by student teams during the summer, eric DeLony headed HAER from 1971 to 2003. In October 2000, NPS and the American Society of Landscape Architects established a sister program, a predecessor, the Historic American Landscape and Garden Project, recorded historic Massachusetts gardens between 1935 and 1940. That project was funded by the Works Progress Administration, but was administered by HABS, the permanent collection of HABS/HAER/HALS are housed at the Library of Congress, which was established in 1790 as the replacement reference library of the United States Congress. It has since expanded to serve as the National Library of the United States, U. S. publishers are required to deposit a copy of every copyrighted and published work, book monograph. As a branch of the United States Government, its works are in the public domain in the US. Many images, drawings, and documents are available through the Prints and Photographs Online Catalog, including proposed, demolished, and existing structures, locales, projects, and designs. Jack Boucher, former HABS/HAER photographer Jet Lowe, former HAER photographer National Register of Historic Places HAER,30 Years of Recording Our Technological Heritage, IA, The Journal of the Society for Industrial Archeology. Documenting Complexity, The Historic American Engineering Record and Americas Technological History, IA, The Journal of the Society for Industrial Archeology. National Park Service−NPS, official Heritage Documentation Programs website
