What was the state where the Revolutionary War began?

I am assuming, first of all, that you are asking about the American Revolution also known as the War for American Independence? If so, the official first battle was fought on the morning of April 19, 1775 on Lexington Green in Lexington, Massachusetts. There are many great sources of information, but I loved both Howard Fast's Across Five Aprils or Barbara Tuchman's The First Salute.