– Trail of Tears: The Cherokee Nation is forcibly relocated in the United States. May 28 – Braulio Carrillo is sworn in as Head of State of Costa Rica, thus beginning his second term in office. June 10 – Myall Creek massacre: 28 Indigenous Australians are killed. June 28 – The coronation of Queen Victoria of the United Kingdom takes place at Westminster Abbey in London. July–September July 4 – In the United States, the Iowa Territory is formally established, following the signing of a bill by President Martin Van Buren on June 12. In addition to Iowa, which will become a state on December 28, 1846, the Territory also includes most of what will become the states of Minnesota, North Dakota and South Dakota. Robert Lucas, former Governor of Ohio, takes office as the first Territorial Governor. August 1 – Former slaves in Jamaica are freed of their indentures. August 6 – The Polytechnic Institution, predecessor of the University of Westminster and Britain's first polytechnic, opens in Regent Street, London. September 7 – Grace Darling and her father rescue 13 survivors from the Forfarshire, off the Farne Islands. September 18 – The Anti-Corn Law League is established by Richard Cobden. October–December October 1 – First Carlist War – Battle of Maella: Supporters of Infante Carlos, Count of Molina, are victorious. October 5 – Killough massacre, believed to be both the largest and last Native American attack on white settlers in East Texas. 18 casualties are either killed or carried away. October 27 – Lilburn Boggs, Governor of Missouri, by Missouri Executive Order 44, declares Mormons to be enemies of the state, and encourages the extermination or exile of the religious minority, forcing nearly 10,000 Mormons out of the state. November 3 – The Bombay Times and Journal of Commerce is founded (renamed The Times of India in 1861). November 5 – Dissolution of the Federal Republic of Central America: Honduras and Costa Rica follow the example of Nicaragua and secede from the federation. November 16 – Austria: Moravia opens the final section of Emperor Ferdinand Northern Railway (Rajhrad–Brno) for exhibition (preliminary) use. November 27 – Pastry War: Mexico is invaded by French forces. December 16 – Battle of Blood River: The Boers win a decisive victory over the Zulus. December – First Anglo-Afghan War: British and Presidency armies set out from Punjab in support of Shah Shujah Durrani's claim