Phi Delta Theta, also known as Phi Delts, is an international social fraternity founded at Miami University in 1848 and headquartered in Oxford, Ohio. Phi Delta Theta, along with Beta Theta Pi and Sigma Chi form the Miami Triad, the fraternity has about 185 active chapters and colonies in over 43 U. S. states and five Canadian provinces and has initiated more than 251,000 men between 1848 and 2014. There are over 142,000 living alumni, Phi Delta Theta chartered house corporations own more than 135 houses valued at over $141 million as of summer 2015. There are nearly 100 recognized alumni clubs across the U. S. and these cardinal principles are contained in The Bond of Phi Delta Theta, the document to which each member pledges on his initiation into the fraternity. McCain Sr. U. S. Navy Admiral and grandfather of John McCain, in 1839, Beta Theta Pi was founded at Miami University in Ohio. After the president expelled most of the involved in the uprising. These men are known today as The Immortal Six, the first meeting was held in Wilsons room at Old North Hall, now called Elliott Hall. During the early meetings, the Founders wrote The Bond of Phi Delta Theta and it has remained unchanged ever since, and it is believed to be the only document of any fraternity of such a nature. Morrison designed the shield form of the badge, with the eye as an emblem, the first branch of Phi Delta Theta was founded at Miami University in Oxford, Ohio in 1848. Fearing punishment from the university, the activities of the fraternity were sub rosa for its first three years of existence, eventually, as the organization attracted new individuals into their membership including prominent university officials, members began to openly wear their badges indicating their affiliation. Phi Delta Theta held its first convention in 1851 in Cincinnati, the event was attended by seven members. Despite the limited number, positive steps were taken for the establishment of new chapters by forming an expansion committee and it was also during the first convention where the chapter at Miami University was designated as the Grand Chapter whose duties were to oversee the overall fraternity operations. Subsequent conventions were held again in Cincinnati five years later, Bloomington, Indiana in 1858, another convention was held in 1864 in Bloomington during the American Civil War. The Civil War was difficult for all fraternities, battles put fraternity brother against fraternity brother. Fifty Phis fought on the side of the Confederacy while 231 Phis fought for the Union Army and it was not until the 1868 Indianapolis convention that the first steps in the creation of an overall administration took place. The convention was regarded as the first National Convention as permanent convention rules were adopted during this time, twelve years later, the most important of all Phi Delta Theta conventions took place. The Indianapolis Convention of 1880 established new ritual, insignia, moreover, the convention saw the creation of the General Council, the governing body of the fraternity, with Walter B. Palmer, Emory-Vanderbilt 1877, and George Banta, Franklin-Indiana 1876, becoming the president and historian, the convention also called for the organization of groups of chapters into provinces, which were to be headed by province presidents
Room where Phi Delta Theta was founded. It is used by undergraduates of the parent chapter in recognition of achievement.
50th Anniversary of Phi Delta Theta with Founders Morrison and Lindley in the fore front. From the 1898 Convention.