75 Years-Ago: First Pro Baseball Game Under the Lights in St. Louis

Browns vs. Indians (and Bob Feller),  Attendance. 24,827

Since the Browns owned the stadium, they got the honors of hosting the first night game.  (The Cardinals first was on June 4, and drew only 23,500.).

http://www.baseball-reference.com/boxes/SLA/SLA194005240.shtml