Phi Delta Theta (ΦΔΘ), commonly known as Phi Delt, is an international secret and 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 over 200 active chapters and colonies in over 44 U.S. states and five Canadian provinces and has initiated more than 310,000 men between 1848 and 2024. There are over 180,000 living alumni. Phi Delta Theta chartered house corporations own more than 135 houses valued at over $200 million as of summer 2024. There are nearly 100 recognized alumni clubs across the U.S. and Canada.
50th Anniversary of Phi Delta Theta with Founders Morrison and Lindley in the fore front. From the 1898 Convention.
Members of Phi Delta Theta at West Point in 1917, before their deployment in the First World War
Phi Delta Theta headquarters in Oxford, Ohio
Benjamin Harrison 23rd President of the U.S.
Miami University is a public research university in Oxford, Ohio, United States. The university was founded in 1809, making it the second-oldest university in Ohio and the 10th oldest public university in the United States. Miami was one of the original eight Public Ivy schools, a group of publicly funded universities considered as providing a quality of education comparable to those of the Ivy League. The school's system comprises the main campus in Oxford, as well as regional campuses in nearby Hamilton, Middletown, and West Chester. Miami also maintains an international boarding campus, the Dolibois European Center in Differdange, Luxembourg. It is classified among "R2: Doctoral Universities – High research activity".
The original Harrison Hall, known as Old Main, was built in 1818 and housed Miami's first classrooms. It was replaced by a new structure in 1959.
Miami University campus in 1909.
The "Beta Bells" of Miami University were built with funds donated by the Beta Theta Pi fraternity on its Centennial in 1939.
The Western College was absorbed by Miami in 1974.
