Births on April 4

Thomas Mayne Reid, Irish-American author and poet (d. 1883)

A failed empty result.

12 Feb

Chilean Declaration of Independence
Bernardo O'Higgins formally approves the Chilean Declaration of Independence near Concepción, Chile.
4 Apr

Flag of the United States
The United States Congress adopts the flag of the United States with 13 red and white stripes and one star for each state (then 20).
16 Apr

Rush-Bagot Treaty
The United States Senate ratifies the Rush-Bagot Treaty, establishing the border with Canada.
20 Apr

Trial by battle
The case of Ashford v Thornton ends, with Abraham Thornton allowed to go free rather than face a retrial for murder, after his demand for trial by battle is upheld.