Pinckney's Treaty, or Treaty of San Lorenzo, signed October 27, 1795, a treaty between the United States and Spain. The United States negotiator was Thomas Pinckney, a special envoy. The border line between East and West Florida (owned by Spain) and the southern boundary of the United States was established. Spain agreed to allow United States citizens the free right of navigation on the Mississippi River and to make New Orleans a duty-free port.
In the dark of night on Dec. 16, 1773, residents of Boston poured more than 90,000 pounds of tea into the harbor. But they weren't trying to set a world record for the most cups of tea made at one time. They were protesting the British government.
President Jefferson sent a couple of his representatives over to France to buy the city of New Orleans. What he got was the Louisiana Purchase, a patch of land that nearly doubled the size of the young nation.