Growing role in world affairs By cuculito Apr 22, 1793 Proclamation of Neutrality May 26, 1797 XYZ Affair Dec 16, 1800 Convention of 1800 May 2, 1803 Louisiana Purchase Dec 22, 1807 Embargo Act Jun 18, 1812 War of 1812 Dec 24, 1814 Treaty of Ghent Dec 2, 1823 Monroe Doctrine