Border markers are formally installed for the European territory of Moresnet. September 20, 1819 – The Carlsbad Decree is issued throughout the German Confederation. Africa 1810: Amadou Lobbo initiates his jihad in present-day Mali. 1810: The Battle of Vieux Grand Port (Great Old Port) in the Indian Ocean, off the coast of the Island of Mauritius, was the only naval victory won by Napoleon. This battle has very often been ignored by scholars, but was of great importance for the control of the Indian Ocean as a trade route between Europe and the East. March 1, 1811 – Citadel Massacre: Egyptian ruler Mohammed Ali kills the last Mamluk leaders. 1813: Following the death of his father Wossen Seged, Sahle Selassie arrives at the capital Qundi before his other brothers, and is made Méridazmach of Shewa. 1816: Banjul, capital of the Gambia, is founded as a trading post, and named Bathurst. August 27, 1816 – Bombardment of Algiers: Various European Allie ships force the Dey of Algiers to free Christian slaves. 1818: Shaka starts to rule. Mtetwa Empire Expansion North America May 1, 1810 – Macon's Bill Number 2 becomes law. June 4, 1810 – The Society in Dedham for Apprehending Horse Thieves is founded in Dedham, Massachusetts. 1811: The Red River Colony is founded in Manitoba, Canada. March 22, 1811 – The Commissioners' Plan of 1811 for Manhattan is presented. November 6, 1811 – Battle of Tippecanoe: American troops led by William Henry Harrison defeat the Native American chief Tecumseh. February 11, 1812 – Massachusetts governor Elbridge Gerry invents gerrymandering. April 4, 1812 – U.S. President James Madison enacts a 90-day embargo on trade with the United Kingdom. April 30, 1812 – Louisiana is admitted as the 18th U.S. state. June 4, 1812 – Following Louisiana's admittance as a U.S. state, the territory by that name is renamed the Missouri Territory. October 1812 – The capital of the Commonwealth of Pennsylvania, United States is permanently moved from Lancaster to Harrisburg. November 5, 1812 – James Madison defeats DeWitt Clinton in the U.S. presidential election. March 27, 1814 – Creek War – Battle of Horseshoe Bend: In northern Alabama, United States forces under General Andrew Jackson defeat the Creek Indians. December 15, 1814 – The Hartford Convention is convened by members of the American Federalist Party. February – The Hartford Convention arrives in Washington, D.C.. August 24, 1816 – The Treaty