|Covid-19|January 3 – The Treaty of Hopewell is signed between the United States of America and the Choctaw Nation.
January 10 – The Treaty of Hopewell is signed between the United States of America and the Chickasaw Nation.
January 31 – The Treaty of Fort Finney, is signed on January 31, 1786, between the United States and certain leaders of the Shawnee.
June 25 – Gavriil Pribylov discovers St. George Island of the Pribilof Islands in the Bering Sea.
August – James Rumsey tests his first steam boat in the Potomac river at Shepherdstown Virginia (now West Virginia).
August 29 – Shays' Rebellion begins in Massachusetts.
November 7 – The oldest musical organization in the United States (the Stoughton Musical Society) is founded.
December 4 – Mission Santa Barbara is founded by Father Fermín Francisco de Lasuén, becoming the 10th mission in the California mission chain.
The town of Martinsborough, North Carolina, itself named for Royal Governor Josiah Martin in 1771, is renamed "Greenesville" in honor of United States General Nathanael Greene by the North Carolina General Assembly; the name "Greenesville" is later shortened to become Greenville.
The United States pays protection money to the Sultan of Morocco to ensure the safety of American merchantmen in the Mediterranean Sea from Barbary pirates.
Articles of Confederation in effect (1781–1788)
Northwest Indian War (1785–1795)
February 24 – Martin W. Bates, United States Senator from Delaware from 1857 till 1859. (died 1869)
April 6 – Robert Hanna, United States Senator from Indiana from 1831 to 1832. (died 1858)
April 7 – William R. King, United States Senator from Alabama from 1819 till 1844. The 13th Vice President of the United States from March till April 1853. (died 1853)
May 28 – Louis McLane, United States Senator from Delaware from 1827 till 1829. (died 1857)
August 14 – John Tipton, United States Senator from Indiana from 1832 to 1839. (died in 1839)
August 17 – Davy Crockett, American frontiersman (died 1836)
September 22 – William Kelly, United States Senator from Alabama from 1822 till 1825. (died 1834)
1786 in the United States Wikipedia
Events from the year 1786 in the United States.