1.
San Francisco
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San Francisco, officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California. It is the birthplace of the United Nations, the California Gold Rush of 1849 brought rapid growth, making it the largest city on the West Coast at the time. San Francisco became a consolidated city-county in 1856, after three-quarters of the city was destroyed by the 1906 earthquake and fire, San Francisco was quickly rebuilt, hosting the Panama-Pacific International Exposition nine years later. In World War II, San Francisco was a port of embarkation for service members shipping out to the Pacific Theater. Politically, the city votes strongly along liberal Democratic Party lines, San Francisco is also the headquarters of five major banking institutions and various other companies such as Levi Strauss & Co. Dolby, Airbnb, Weebly, Pacific Gas and Electric Company, Yelp, Pinterest, Twitter, Uber, Lyft, Mozilla, Wikimedia Foundation, as of 2016, San Francisco is ranked high on world liveability rankings. The earliest archaeological evidence of habitation of the territory of the city of San Francisco dates to 3000 BC. Upon independence from Spain in 1821, the became part of Mexico. Under Mexican rule, the system gradually ended, and its lands became privatized. In 1835, Englishman William Richardson erected the first independent homestead, together with Alcalde Francisco de Haro, he laid out a street plan for the expanded settlement, and the town, named Yerba Buena, began to attract American settlers. Commodore John D. Sloat claimed California for the United States on July 7,1846, during the Mexican–American War, montgomery arrived to claim Yerba Buena two days later. Yerba Buena was renamed San Francisco on January 30 of the next year, despite its attractive location as a port and naval base, San Francisco was still a small settlement with inhospitable geography. The California Gold Rush brought a flood of treasure seekers, with their sourdough bread in tow, prospectors accumulated in San Francisco over rival Benicia, raising the population from 1,000 in 1848 to 25,000 by December 1849. The promise of fabulous riches was so strong that crews on arriving vessels deserted and rushed off to the gold fields, leaving behind a forest of masts in San Francisco harbor. Some of these approximately 500 abandoned ships were used at times as storeships, saloons and hotels, many were left to rot, by 1851 the harbor was extended out into the bay by wharves while buildings were erected on piles among the ships. By 1870 Yerba Buena Cove had been filled to create new land, buried ships are occasionally exposed when foundations are dug for new buildings. California was quickly granted statehood in 1850 and the U. S. military built Fort Point at the Golden Gate, silver discoveries, including the Comstock Lode in Nevada in 1859, further drove rapid population growth. With hordes of fortune seekers streaming through the city, lawlessness was common, and the Barbary Coast section of town gained notoriety as a haven for criminals, prostitution, entrepreneurs sought to capitalize on the wealth generated by the Gold Rush
2.
California
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California is the most populous state in the United States and the third most extensive by area. Located on the western coast of the U. S, California is bordered by the other U. S. states of Oregon, Nevada, and Arizona and shares an international border with the Mexican state of Baja California. Los Angeles is Californias most populous city, and the second largest after New York City. The Los Angeles Area and the San Francisco Bay Area are the nations second- and fifth-most populous urban regions, California also has the nations most populous county, Los Angeles County, and its largest county by area, San Bernardino County. The Central Valley, an agricultural area, dominates the states center. What is now California was first settled by various Native American tribes before being explored by a number of European expeditions during the 16th and 17th centuries, the Spanish Empire then claimed it as part of Alta California in their New Spain colony. The area became a part of Mexico in 1821 following its war for independence. The western portion of Alta California then was organized as the State of California, the California Gold Rush starting in 1848 led to dramatic social and demographic changes, with large-scale emigration from the east and abroad with an accompanying economic boom. If it were a country, California would be the 6th largest economy in the world, fifty-eight percent of the states economy is centered on finance, government, real estate services, technology, and professional, scientific and technical business services. Although it accounts for only 1.5 percent of the states economy, the story of Calafia is recorded in a 1510 work The Adventures of Esplandián, written as a sequel to Amadis de Gaula by Spanish adventure writer Garci Rodríguez de Montalvo. The kingdom of Queen Calafia, according to Montalvo, was said to be a land inhabited by griffins and other strange beasts. This conventional wisdom that California was an island, with maps drawn to reflect this belief, shortened forms of the states name include CA, Cal. Calif. and US-CA. Settled by successive waves of arrivals during the last 10,000 years, various estimates of the native population range from 100,000 to 300,000. The Indigenous peoples of California included more than 70 distinct groups of Native Americans, ranging from large, settled populations living on the coast to groups in the interior. California groups also were diverse in their organization with bands, tribes, villages. Trade, intermarriage and military alliances fostered many social and economic relationships among the diverse groups, the first European effort to explore the coast as far north as the Russian River was a Spanish sailing expedition, led by Portuguese captain Juan Rodríguez Cabrillo, in 1542. Some 37 years later English explorer Francis Drake also explored and claimed a portion of the California coast in 1579. Spanish traders made unintended visits with the Manila galleons on their trips from the Philippines beginning in 1565
3.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
4.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
5.
Association of Zoos and Aquariums
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The AZA is headquartered in Silver Spring, Maryland. In October 1924, the American Association of Zoological Parks and Aquariums was formed as an affiliate of the American Institute of Park Executives, in 1966, the AAZPA became a professional branch affiliate of the newly formed National Recreation and Park Association. In January 1994, the shorter name American Zoo and Aquarium Association was adopted, in 1998, there were 134 million visits to North American zoos and aquariums. Ten years later, in 2008, there were 175 million visits to AZA-accredited zoos, the organization is active in institution accreditation, animal care initiatives, education and conservation programs, collaborative research and advocacy in order to achieve this goal. It serves as a body for zoos and aquariums and ensures that accredited facilities meet higher standards of animal care than are required by law. Institutions are evaluated every five years in order to ensure standards are met, the association also facilitates both Species Survival Plans and Population Management Plans, which serve to sustainably manage genetically diverse captive populations of various animal species. In addition, the association sponsors the scientific journal Zoo Biology, the association has established a computerized database called the Annual Report on Conservation and Science. It provides a model for a database to help track research projects worldwide. The database can be searched by key word, name of researcher, topic, country or region, name of institution, conservation program title, name of cooperating institution, type of research, or date. In 2000-2001, member institutions reported that they participated in over 2,230 conservation projects in 94 countries and they published 1,450 books, book chapters, journal articles, conference proceeding papers, posters and theses or dissertations. The publications can be searched using keywords, name of author, type of publication, institution name, or date. Depending on the animals they exhibit, the activities of zoos are regulated by laws including the Endangered Species Act, the Animal Welfare Act, additionally, zoos in North America may choose to pursue accreditation by the Association of Zoos and Aquariums. They shall further be defined as having as their business the exhibition, conservation and preservation of the earths fauna in an educational. Inspection is performed by three experts and then reviewed by a panel of experts before accreditation is awarded. This accreditation process is repeated every five years. The AZA estimates that there are approximately 2,400 animal exhibits operating under USDA license as of February 2007, list of AZA member zoos and aquariums Official website
6.
Muni Metro
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Muni Metro is a light rail/streetcar hybrid system serving San Francisco, California, operated by the San Francisco Municipal Railway, a division of the San Francisco Municipal Transportation Agency. With an average ridership of 128,500 passengers as of the fourth quarter of 2014. Muni Metro operates a fleet of 151 light rail vehicles made by Breda, Muni Metro is the modern incarnation of the traditional streetcar system that had served San Francisco since the late 19th century. Recently, the system has undergone expansion, most notably the Third Street Light Rail Project, completed in 2007, other projects, such as the Central Subway, are underway. Muni Metro descended from the traditional streetcar system started on December 28,1912. The first streetcar line, the A Geary, ran from Kearny and Market Streets in the Financial District to Fulton Street, the system slowly expanded, opening the Twin Peaks Tunnel in 1917, allowing streetcars to run to the southwestern quadrant of the city. By 1921, the city was operating 304 miles of trolley lines and 25 miles of cable car lines. The last line to service before 2007 was the N Judah. However, five heavily used streetcar lines traveled for at least part of their routes through tunnels or otherwise reserved right-of-way, as a result, these lines, running PCC streetcars, continued in operation. The new tunnel would be connected to the existing Twin Peaks Tunnel, the new underground stations would feature high platforms, and the older stations would be retrofitted with the same, which meant that the PCCs could not be used in them. Hence, a fleet of new rail vehicles was ordered from Boeing-Vertol. The K and M lines were extended to Balboa Park during this time, on February 18,1980, the Muni Metro was officially inaugurated, with weekday N line service in the subway. The Metro service was implemented in phases, and the subway was served only on weekdays until 1982. The K Ingleside line began using the Metro subway on weekdays on June 11,1980, the L Taraval and M Ocean View lines on December 17,1980, and lastly the J Church line on June 17,1981. Meanwhile, weekend service on all five lines continued to use PCC cars operating on the surface of Market Street through to the Transbay Terminal, finally, on November 20,1982, the Muni Metro subway began operating seven days a week. At the time, there were no plans to revive any service on the surface of Market Street or return PCCs to regular running. However, tracks were rehabilitated for the 1983 Historic Trolley Festival, Muni criticism had been something of a feature of life in San Francisco, and not without reason. The Boeing trains were sub-par and grew crowded quickly, Muni did take steps to address these problems
7.
Zoo
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A zoo is a facility in which animals are confined within enclosures, displayed to the public, and in which they may also breed. The term zoological garden refers to zoology, the study of animals, the abbreviation zoo was first used of the London Zoological Gardens, which was opened for scientific study in 1828 and to the public in 1857. The number of animal collections open to the public around the world now exceeds to 1,000. In the United States of America alone, zoos are visited by over 180 million people annually, London Zoo, which opened in 1826, first called itself a menagerie or zoological forest, which is short for Gardens and Menagerie of the Zoological Society of London. The term zoological park was used for more facilities in Washington, D. C. and the Bronx in New York. Relatively new terms for zoos coined in the late 20th century are conservation park or biopark, adopting a new name is a strategy used by some zoo professionals to distance their institutions from the stereotypical and nowadays criticized zoo concept of the 19th century. The term biopark was first coined and developed by the National Zoo in Washington D. C. in the late 1980s, in 1993, the New York Zoological Society changed its name to the Wildlife Conservation Society and rebranded the zoos under its jurisdiction as wildlife conservation parks. The predecessor of the garden is the menagerie, which has a long history from the ancient world to modern times. The oldest known collection was revealed during excavations at Hierakonpolis, Egypt in 2009. The exotic animals included hippopotami, hartebeest, elephants, baboons, King Ashur-bel-kala of the Middle Assyrian Empire created zoological and botanical gardens in the 11th century BCE. In the 2nd century BCE, the Chinese Empress Tanki had a house of deer built, other well-known collectors of animals included King Solomon of the Kingdom of Israel and Judah, queen Semiramis and King Ashurbanipal of Assyria, and King Nebuchadnezzar of Babylonia. By the 4th century BCE, zoos existed in most of the Greek city states, the Roman emperors kept private collections of animals for study or for use in the arena, the latter faring notoriously poorly. The 19th-century historian W. E. H. Lecky wrote of the Roman games, first held in 366 BCE, At one time, a bear, four hundred bears were killed in a single day under Caligula. Under Nero, four hundred tigers fought with bulls and elephants, in a single day, at the dedication of the Colosseum by Titus, five thousand animals perished. Lions, tigers, elephants, rhinoceroses, hippopotami, giraffes, bulls, stags, even crocodiles, henry I of England kept a collection of animals at his palace in Woodstock, which reportedly included lions, leopards, and camels. The most prominent collection in medieval England was in the Tower of London and it was opened to the public during the reign of Elizabeth I in the 16th century. During the 18th century, the price of admission was three half-pence, or the supply of a cat or dog for feeding to the lions, the animals were moved to the London Zoo when it opened. The oldest zoo in the still in existence is the Tiergarten Schönbrunn in Vienna
8.
Lake Merced
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Lake Merced is a freshwater lake in the southwest corner of San Francisco, in the U. S. state of California. The San Francisco Police Department shooting range, as well as a shooting club. The lake is home of the Pacific Rowing Club and St. Ignatius College Prep Rowing Team, Lake Merced was originally christened Laguna de Nuestra Señora de la Merced by Captain Don Bruno de Heceta in 1775. The most probable cause of the shock was attributed to heavy rains forcing a passage through the sandbank at the north-west, the Lake is reported to have lost 30 feet of water. A map from 1881 shows that the Lake still had a passage to sea,29 years later, by purchasing all local supply, the company created a monopoly on San Franciscos water. It was not until 1908, when the city approved construction of OShaughnessy Dam creating the Hetch Hetchy Reservoir in the Sierra Nevada mountain range, that the city gained municipal control. Prior to the construction of the dam, Lake Merced was to serve as the main reservoir. Around this time, Spring Valley sold off some of its land on Lake Merced, in 1940, Metropolitan Life bought the last of Spring Valleys land to build the Parkmerced apartment complex. Lake Merced at one time directly flowed into the ocean, the lake is fed by an underground spring, and at one time it did have an outlet to the ocean as shown on an 1869 United States Coast and Geodetic Survey Map. The salt level was always fluctuating, and therefore some species of fish inhabit the lake are salt. There is active recreational fishing at the lake, the lakes water level had been shrinking for decades, endangering the historic role of Lake Merced to support a healthy ecosystem. Due to better management of the aquifer and occasional additions of water, on September 13,1859, Chief Justice of the California Supreme Court David S. Terry killed United States Senator David C. Broderick in a duel at the lake
9.
Pacific Ocean
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The Pacific Ocean is the largest and deepest of the Earths oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean in the south and is bounded by Asia and Australia in the west, the Mariana Trench in the western North Pacific is the deepest point in the world, reaching a depth of 10,911 metres. Both the center of the Water Hemisphere and the Western Hemisphere are in the Pacific Ocean, the oceans current name was coined by Portuguese explorer Ferdinand Magellan during the Spanish circumnavigation of the world in 1521, as he encountered favourable winds on reaching the ocean. He called it Mar Pacífico, which in both Portuguese and Spanish means peaceful sea, important human migrations occurred in the Pacific in prehistoric times. Long-distance trade developed all along the coast from Mozambique to Japan, trade, and therefore knowledge, extended to the Indonesian islands but apparently not Australia. By at least 878 when there was a significant Islamic settlement in Canton much of trade was controlled by Arabs or Muslims. In 219 BC Xu Fu sailed out into the Pacific searching for the elixir of immortality, from 1404 to 1433 Zheng He led expeditions into the Indian Ocean. The east side of the ocean was discovered by Spanish explorer Vasco Núñez de Balboa in 1513 after his expedition crossed the Isthmus of Panama and he named it Mar del Sur because the ocean was to the south of the coast of the isthmus where he first observed the Pacific. Later, Portuguese explorer Ferdinand Magellan sailed the Pacific East to West on a Castilian expedition of world circumnavigation starting in 1519, Magellan called the ocean Pacífico because, after sailing through the stormy seas off Cape Horn, the expedition found calm waters. The ocean was often called the Sea of Magellan in his honor until the eighteenth century, sailing around and east of the Moluccas, between 1525 and 1527, Portuguese expeditions discovered the Caroline Islands, the Aru Islands, and Papua New Guinea. In 1542–43 the Portuguese also reached Japan, in 1564, five Spanish ships consisting of 379 explorers crossed the ocean from Mexico led by Miguel López de Legazpi and sailed to the Philippines and Mariana Islands. The Manila galleons operated for two and a half centuries linking Manila and Acapulco, in one of the longest trade routes in history, Spanish expeditions also discovered Tuvalu, the Marquesas, the Cook Islands, the Solomon Islands, and the Admiralty Islands in the South Pacific. In the 16th and 17th century Spain considered the Pacific Ocean a Mare clausum—a sea closed to other naval powers, as the only known entrance from the Atlantic the Strait of Magellan was at times patrolled by fleets sent to prevent entrance of non-Spanish ships. On the western end of the Pacific Ocean the Dutch threatened the Spanish Philippines, Spain also sent expeditions to the Pacific Northwest reaching Vancouver Island in southern Canada, and Alaska. The French explored and settled Polynesia, and the British made three voyages with James Cook to the South Pacific and Australia, Hawaii, and the North American Pacific Northwest, one of the earliest voyages of scientific exploration was organized by Spain in the Malaspina Expedition of 1789–1794. It sailed vast areas of the Pacific, from Cape Horn to Alaska, Guam and the Philippines, New Zealand, Australia, and the South Pacific. Growing imperialism during the 19th century resulted in the occupation of much of Oceania by other European powers, and later, Japan, in Oceania, France got a leading position as imperial power after making Tahiti and New Caledonia protectorates in 1842 and 1853 respectively. After navy visits to Easter Island in 1875 and 1887, Chilean navy officer Policarpo Toro managed to negotiate an incorporation of the island into Chile with native Rapanui in 1888, by occupying Easter Island, Chile joined the imperial nations
46th Avenue and Wawona
Media related to San Francisco Zoo at Wikimedia Commons