What is associated with: 1776 george washington his troops cross this river to attack the hessians?

What is associated with: 1775 bunker hill order on when you were allowed to shoot? What is associated with: 1775s shot heard round the world was shot at the battle of this town? What is associated with: 1776 adam weishaupt forms this enlightened bavarian secret society? What is associated with: 1776 climaxes with this historical event? Based on the clue '178 feet above sea level on the mississippi river ...', what is the answer? What is associated with: 1781 each state retains its sovereignty freedom and independence? What is associated with: 1783 his britannic majesty acknowledges the said us to be free sovereign and independent? What is associated with: 1783 war over didnt get canada 2day when i signed treaty of this but usa h2s?