Events in History
- May 6 1st African American Masonic Lodge (African # 459) forms Prince Hall, Boston
- May 8 First US prison reform society formed, the Philadelphia Society for Alleviating the Miseries of Public Prisons led by Dr. Benjamin Rush
- May 10 British Parliament impeaches Warren Hastings, Governor-General of Bengal
Event of Interest
May 13 Arthur Phillip sets sails with 11 ships of criminals to Botany Bay, Australia

Arthur Phillip
Constitution of the United States
May 14 Delegates gather in Philadelphia to draw up US constitution
Learn More- May 17 English slave ship Sisters, en route from Africa to Cuba, capsizes killing hundreds
Event of Interest
May 25 Constitutional convention opens at Philadelphia, George Washington presiding

George Washington
- May 29 "Virginia Plan" proposed
Birthdays in History
- May 7 Jacques Viger, French Canadian politician, 1st mayor of Montreal (1833-36), born in Montreal, Quebec (d. 1858)
Deaths in History
- May 10 William Watson, English physician and scientist, dies at 72