Alpha Sigma Phi was founded at Yale University on December 6, 1845. Three young men: Louis Manigault, Horace Spangler Weiser, and Stephen Ormsby Rhea, all freshmen, met and laid down the basic principles of a society that today counts its membership in the thousands.
Since 1845, Alpha Sigma Phi has maintained a proud tradition of creating and perpetuating brotherhood for good men coast to coast. Dedicated alumni have long preserved and enriched the "Old Gal's" tradition with a vision for the future that exemplifies the experiences of the past. Through the years, many brothers have noted that Alpha Sigma Phi made a significant contribution early in their lives. With gratitude, these members have remained loyal and are supportive of the Fraternity's future.
Alpha Sigma Phi's existence has been threatened many times over the last 150 years. The fraternity still managed to pull through these hardships. Therefore, the official symbol of the fraternity is the Phoenix, the mythological bird that rises from its ashes.
Today, Alpha Sigma Phi is recognized as a fraternity of quality and stature. With over 130 chapters, colonies, and interest groups, and an active expansion effort, the Fraternity continues to offer meaningful services and opportunities to over 2,500 undergraduates and 70,000 living alumni.