Answer:
December 23, 1775 - King George III issues a royal proclamation closing the American colonies to all commerce and trade, to take effect in March of 1776. Also in December, Congress is informed that France may offer support in the war against Britain.
Explanation:
He set the bar for generations of good Jazz and invented what he called "American Music."
In 1862 The union won/defeated confederacy at sHilo and Antietam
A is most likely the answer