List of 1786 Major News Events in History, Most Important Historical Events in 1786
| Date | Event | 
|---|---|
| January 16, 1786 | Virginia enacts the Statute for Religious Freedom authored by Thomas Jefferson. | 
| June 10, 1786 | A landslide dam on the Dadu River created by an earthquake ten days earlier collapses, killing 100,000 in the Sichuan province of China. | 
| June 25, 1786 | Gavriil Pribylov discovers St. George Island of the Pribilof Islands in the Bering Sea. | 
| June 29, 1786 | Alexander Macdonell and over five hundred Roman Catholic highlanders leave Scotland to settle in Glengarry County, Ontario. | 
| August 7, 1786 | The first federal Indian Reservation is created by the United States. | 
| August 8, 1786 | Mont Blanc on the French-Italian border is climbed for the first time by Jacques Balmat and Dr. Michel-Gabriel Paccard. | 
| August 11, 1786 | Captain Francis Light establishes the British colony of Penang in Malaysia. | 
| August 29, 1786 | Shays' Rebellion, an armed uprising of Massachusetts farmers, begins in response to high debt and tax burdens. | 
| September 11, 1786 | The beginning of the Annapolis Convention. | 
| November 7, 1786 | The oldest musical organization in the United States is founded as the Stoughton Musical Society. | 
| November 30, 1786 | The Grand Duchy of Tuscany, under Pietro Leopoldo I, becomes the first modern state to abolish the death penalty (later commemorated as Cities for Life Day). | 
| December 4, 1786 | Mission Santa Barbara is dedicated (on the feast day of Saint Barbara). |