1917 – 21st Boston Marathon won by Bill Kennedy in 2:28:37.2
1918 – The British House of Commons passes a new Military Service Bill, taking men up to 55 years old and extending to Ireland
1923 – 27th Boston Marathon won by Clarence DeMar in 2:23:37.4 for second straight year; 3rd race victory
1953 – Stanley Cup Final, Montreal Forum, Montreal, Quebec: Montreal Canadiens beat Boston Bruins, 1-0 for a 4-1 series win
1970 – Protestant Unionist Ian Paisley wins seat formerly held by Terence O’Neill in the Stormont (North Ireland Parliament)
1974 – USSR performs nuclear test at Eastern Kazakh/Semipalitinsk USSR
1983 – Steve Garvey sets NL record by playing in 1,118 consecutive games
1984 – 88th Boston Marathon: Englishman Geoff Smith wins men’s event in 2:10:34; Lorraine Moller of New Zealand women’s champion in 2:29:28
1993 – David Lee Roth arrested in NYC for purchasing marijuana for $10
2007 – Virginia Tech massacre: The deadliest mass shooting in modern American history. The gunman, Seung-Hui Cho, kills 32 people and injures 23 others before committing suicide.