1767 Townshend Acts. 1768 British troops in Boston. 1770 Boston Massacre. 1773 “Boston Tea-party.” 1774 Boston Port Bill. 1774 First Continental Congress meets in Philadelphia. 1775 Battles of Lexington and Concord. Siege of Boston. Battle of Bunker Hill. 1775 Mecklenburg Resolutions. 1776 Declaration of Independence. 1777 Victories of Princeton, Bennington, and Saratoga. Defeats of Brandywine and Germantown. Washington at Valley Forge. 1778 France becomes an ally of the United States. 1779 Naval victories of Paul Jones. 1780 Arnold’s treason. 1781 Articles of Confederation finally agreed to. 1781 Battle of Cowpens. Cornwallis surrenders at Yorktown. 1782 Preliminary treaty with Great Britain. 1783 Peace of Versailles. 1787 Federal Convention frames the Constitution. 1787 Ordinance concerning the Northwest Territory passed by Congress. 1788 The states ratify the Constitution. 1789 Washington inaugurated at New York. Organization of Congress and the Departments. 1792 Formation of Federalist and Democratic-Republican parties. 1793 Washington’s proclamation of neutrality. 1795 Jay’s Treaty ratified. 1798 The Alien and Sedition Laws. 1798 The Virginia and Kentucky Resolutions. 1800 The city of Washington becomes the national capital. 1801 Jefferson elected President by the House of Representatives. 1803 Purchase of Louisiana. 1804 Expedition of Lewis and Clark. 1807 Fulton’s steamboat. 1807 Passage of the Embargo. 1809 The Non-intercourse Act. 1812 War with Great Britain. 1814 The British capture Washington. 1814 The Hartford Convention. 1814 The Treaty of Ghent. 1815 The battle of New Orleans. 1819 Florida purchased from Spain. 1820 First Missouri Compromise. 1823 Monroe Doctrine. 1825 Erie Canal opened. 1830 Hayne-Webster debate. 1830 Baltimore and Ohio Railroad opened. 1832 Nullification in South Carolina. 1832 Rise of the Whig party. 1833 Chicago founded. 1836 Independence of Texas. 1840 Sub-treasury system established. 1840 Liberty party formed. 1842 Ashburton Treaty. 1842 Dorr’s Rebellion in Rhode Island. 1844 Morse completes the first telegraph line. 1846–1848 Mexican War. 1846 Wilmot Proviso. 1846 Oregon Treaty. 1848 Treaty of Guadalupe Hidalgo.