On This Day

Historical Events in May 1790

  • May 26 Territory South of River Ohio created by US Congress

USAConstitution of the United States

May 29 Rhode Island becomes last of original 13 colonies ratifying US Constitution
Learn More >>

Page one of the original copy of the Constitution of the United States
Page one of the original copy of the Constitution of the United States
  • May 31 US copyright law enacted
  • May 31 Alferez Manuel Quimper explores the Strait of Juan de Fuca