On October 21 The word "Liberty" is first displayed on a flag raised by colonists in Taunton, Massachusetts, in defiance of British rule.
July 21 The Russo-Turkish war ends after 6 years years.
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the intolerable acts were passed on march 31st, 1774
Dunmore's War happened in 1774.
declaration of independence
Continental Association happened in 1774.
The American Civil War
the boston tea party
Yellow Creek Massacre happened in 1774.
Powder Alarm happened on 1774-09-01.
The American revolution began in 1774 and ended in 1776.
"The Congress met from 5 September to 26 October 1774." -Wikipedia see attached link for more info:
An event that will definitely happen is an event with 100% probability.