1785. Disputes between the United States and Spain over the navigation of the Mississippi and the boundaries of the Floridas. 1786. Outbreak of Shays’ Rebellion in Massachusetts. 1787. Suppression of Shays’ Rebellion. Framing of the Constitution of the United States at Philadelphia. Congress undertakes the government of the Northwest Territory. 1788. The Constitution ratified by a majority of the States. 1789. George Washington elected first President of the United States. The Continental Congress is superseded by the first Congress under the Constitution. Beginning of the French Revolution. 1790. Rhode Island (the last of the original thirteen States) ratifies the Constitution. Harmar’s unsuccessful expedition against the Indians of the Northwest Territory. 1791. Admission of Vermont into the Union. Defeat of St. Clair by the Miami Indians. Insurrection of the blacks in Hayti against the French. Canada is divided into Upper and Lower Canada. 1792. Admission of Kentucky into the Union. 1793. Beginning of Washington’s second administration. Execution of Louis XVI. and Marie Antoinette. Napoleon Bonaparte commands the French artillery at the recapture of Toulon from the English. 1794. Whiskey Insurrection in Pennsylvania. The Miami Indians defeated by Gen. Anthony Wayne near Maumee Rapids, Ohio. 1796. Admission of Tennessee into the Union. John Adams elected President. Bonaparte becomes the conspicuous figure in European warfare. 1797. Trouble between France and the United States. The _Constellation_ captures _L’Insurgente_. 1798. Passage of the Alien and Sedition laws in the United States. 1799. Death of Washington. 1800. The seat of government of the United States is removed from Philadelphia to Washington. Thomas Jefferson elected President. Retrocession of Louisiana to France by Spain. 1801. War between Tripoli and the United States. 1802. Admission of Ohio into the Union. 1803. The Louisiana Purchase is negotiated with France. 1804. Thomas Jefferson re-elected President. Decatur captures and burns the frigate _Philadelphia_ at Tripoli. Lewis and Clark Expedition, 1804–1806. Napoleon proclaimed Emperor of France. 1805. Peace between the United States and Tripoli. 1806. The _Leander_, a British naval vessel, fires into an American coaster off Sandy Hook. Great Britain issues an “Order in Council” declaring the coast of Europe from the Elbe to Brest under blockade. Napoleon issues Berlin Decree. Culmination of Aaron Burr’s conspiracy and his arrest. 1807. Congress prohibits the importation of slaves. The British man-of-war _Leopard_ fires upon the American frigate _Chesapeake_ and takes four seamen claimed as British subjects. Aaron Burr tried for conspiracy and treason, and acquitted. Another British “Order in Council” forbids neutral nations to deal with France. Napoleon’s Milan decree forbidding trade with England. American Embargo Act, prohibiting foreign commerce.