• On May 11, 1976, the long-running TV medical drama “Marcus Welby, M.D.” ends. The show, which premiered in 1969, was ABC’s first No. 1 rated series.

• On May 12, 1925, a Philadelphia radio station broadcasts the first all-star radio program featuring film actors and actresses. Sound films had not yet debuted, and the broadcast marked the first time that most listeners had heard the voices of film stars like Lillian Gish and Marion Davies.

• On May 13, 1985, in Philadelphia, police begin evacuating people from their Osage Avenue homes in order to prepare for an operation against MOVE, a radical cult group that had assembled a large arsenal. By the end of the confrontation, 11 people were dead and 61 homes had burned down. In 1986, a jury awarded $1.5 million to three survivors of the MOVE raid.

• On May 14, 1913, pitcher Walter “The Big Train” Johnson throws his record 56th consecutive scoreless inning, leading his Washington Senators to victory over the St. Louis Browns, 10-5, at Sportsman’s Park

• On May 17, 1930, the radio quiz show “Information Please” is first broadcast. Previously, radio quiz shows generally posed difficult questions to ordinary people. “Information Please” assembled a panel of experts and intellectuals and asked them tricky questions. The show ran until 1948.