<P> Among the best - known members of the fraternity are Benjamin Harrison, the 23rd President of the United States, Adlai Stevenson I, the 23rd Vice President of the United States, Baseball Hall of Fame member Lou Gehrig, actor Burt Reynolds, architect Frank Lloyd Wright, Neil Armstrong the first man to walk on the moon, R. Scott Morris the former CEO of the Boston Options Exchange, and John S. McCain Sr., U.S. Navy Admiral and grandfather of John McCain . </P> <P> In 1839, Beta Theta Pi was founded at Miami University in Ohio . In protest against the president of the university, members of Beta Theta Pi and another fraternity, Alpha Delta Phi, blocked the entrances of the main educational and administrative building in what became known as the Great Snowball Rebellion of 1848 . </P> <P> After the president expelled most of the students involved in the uprising, Phi Delta Theta was formed by six men staying in a dormitory the day after Christmas . Robert Morrison, a senior, proposed to classmate John McMillan Wilson that they form a secret society together; the two subsequently invited juniors Robert Thompson Drake and John Wolfe Lindley and sophomores Ardivan Walker Rodgers and Andrew Watts Rogers to join them . These men are known today as "The Immortal Six ." The first meeting was held in Wilson's room at Old North Hall, now called Elliott Hall . </P> <P> During the early meetings, the Founders wrote The Bond of Phi Delta Theta, which is the fundamental law of the fraternity . 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, while Wilson suggested the scroll with the Greek letters on it . 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 . Phi Delta Theta also took an unusual step, unique among all fraternities, of splitting into two chapters at both Miami and Centre College, so their meetings would be smaller and attract less attention . Eventually, as the organization attracted new individuals into their membership including prominent university officials, members began to openly wear their badges indicating their affiliation . </P>

In what building on miamis campus did the founding of the fraternity occur