SEPTA is celebrating the 100 year anniversary of 69th Street Terminal and the Route 100 Norristown High Speed Line. A centennial celebration ceremony will be held at the 69th Street Terminal Grand Hall on Saturday, May 10, 2008, at 11:30 a.m. and festivities will continue from 12 Noon to 3:00 p.m. There will be refreshments, a historical display and live music. Visitors are also invited to take a Free Ride on the scenic Route 100 Norristown High Speed Line from 11:00 a.m. to 4:00 p.m.
(Thanks to rider65 in PTV forums for providing this notice.)