Free States compromised 183 electoral votes. - hope this helps !
A method called statistics
The Battle of Lexington began on April 19, 1775 when Paul Revere arrived to Lexington, a town, and warned the minutemen there that "the British were coming". The British were ordered to arrest the rebels that did not want to pay the heavy taxes, but ended up becoming a war and eventually led to the American Revolution.
The purpose of the United States signing treaties with Native Americans was so that Native Americans can have land in North America.