March 4 – France is divided into 83
départements, which cut across the former
provinces, in an attempt to dislodge regional loyalties based on noble ownership of land.
March 6 – The legislature of New York consents to the
admission to the Union of a new state,
Vermont, formed within the boundaries of New York, contingent upon the successful conclusion of negotiations concerning disputed real-estate claims and the boundary between the two states.
June 20 –
Compromise of 1790: Thomas Jefferson,
James Madison, and
Alexander Hamilton come to an agreement: Madison agrees to not be "strenuous" in opposition for the assumption of state debts by the federal government; Hamilton agrees to support the capital site being above the Potomac.
October 7 – Commissioners appointed by the legislature of New York announce the successful conclusion of negotiations between New York and
Vermont concerning disputed real-estate claims and the consent of New York's legislature to the
admission to the Union of the state of Vermont as the 14th State, which was formed within what New York claimed as its territory under an
Order in Council that
King George III issued on July 20, 1764.
August 23 – The following universal
conscription decree is enacted in France: "The young men shall go to battle and the married men shall forge arms. The women shall make tents and clothes and shall serve in the hospitals; children shall tear rags into lint. The old men will be guided to the public places of the cities to kindle the courage of the young warriors and to preach the unity of the Republic and the hatred of kings."
April 27 – Case of the Lyons Mail: During the night, five highwaymen attack the mail between Paris and
Lyon, kill the postmen and steal the funds sent to the armies in Italy.
May 6 – Napoleon Bonaparte forms an advanced guard (3,500 infantry and 1,500 cavalry) under General
Claude Dallemagne. He sends this force along the south bank of the
Po River to cross it with boats at
September 15 –
Siege of Mantua: Napoleon Bonaparte fights a pitched battle at
La Favorita on the east side of the Mincio River. The Austrians withdraw into the fortress of
Mantua, which is crowded nearly with 30,000 men. Within six weeks, 4,000 die from wounds or sickness.
April 7 – The
Mississippi Territory is organized by the United States from territory ceded by
South Carolina; later it is twice expanded to include disputed territory claimed by both the U.S. and Spain (which acquired territory in trade with Great Britain).
May 23 – Irish republicans and
nationalists, known as the
Society of United Irishmen, launch a
rebellion against British rule in expectation of greater support from France which only sent 1100 men. The United Irishmen are unique amongst Irish nationalist movements in that they unify Catholics and Protestants around republican ideals. The rebellion rages sporadically but is defeated by the British by October.
12-year-old Conrad John Reed finds what he describes as a "heavy yellow rock" along Little Meadow Creek in
Cabarrus County, North Carolina and makes it a doorstop in his home. Conrad's father John Reed learns that the rock is actually gold in
1802, initiating the first gold rush in the United States.
The assassination of the 14th
Tu'i Kanokupolu, Tukuʻaho, plunges
Tonga into half a century of civil war.