From www.pushamerica.org:

In 1976 Durward Owen, then Executive Director of Pi Kappa Phi, called a meeting of the minds with the leaders of Pi Kappa Phi in an effort to mobilize the work force that was the fraternity's undergraduate members. At that time, he approached a man named Thomas Sayre who designed a therapeutic play unit for children with severe disabilities. Little did they know that their collaboration would spur a philanthropic initiative that is, to this day, an unparalleled success in the Greek world.

In 1977 Push America was established as a non-profit organization by Pi Kappa Phi Fraternity. Ingenuity has allowed for Push America to develop premier programming for Pi Kappa Phi undergraduates and alumni. What started out as construction of Thomas Sayre's play unit has evolved into a collection of nationally recognized programs that promote a greater understanding of people with disabilities.