On this day: April 30

Monica Seles Stabbed During Hamburg Match, April 1993

On April 30, 1993, reigning world No. 1 Monica Seles was stabbed on court by a spectator during a changeover at a tournament in Hamburg, Germany, an attack that sidelined her for over two years and deeply affected professional tennis.

Tennis Star Monica Seles Stabbed by Fan During 1993 Match in Hamburg

On April 30, 1993, world No. 1 Monica Seles was stabbed by a deranged fan during a changeover at a WTA match in Hamburg, Germany; the attack sidelined her for over two years and reshaped professional tennis security.

First Mass‑Produced Television Goes on Sale at 1939 World's Fair

On April 30, 1939, RCA began selling the first mass‑produced television sets to the public—marking a turning point from experimental broadcasts to consumer television, introduced at the New York World's Fair and timed with the burgeoning broadcast service.

April 30, 1940: The First Commercial Television Network Begins Regular Service

On April 30, 1940, the first commercial television network in the United States began regular broadcasts, marking a transition from experimental transmissions to scheduled, advertiser-supported programming that would shape mass media in the decades ahead.