What is associated with: 1775s shot heard round the world was shot at the battle of this town?

What is associated with: 1760s political activist james otis is credited with the phrase taxation without this is tyran… What is associated with: 1770 if god did not exist it would be necessary to invent him? What is associated with: 1770 this man seth warner organize the green mountain boys? What is associated with: 1775 bunker hill order on when you were allowed to shoot? What is associated with: 1776 adam weishaupt forms this enlightened bavarian secret society? What is associated with: 1776 climaxes with this historical event? What is associated with: 1776 george washington his troops cross this river to attack the hessians? Based on the clue '178 feet above sea level on the mississippi river ...', what is the answer?