Emily's Timeline By bravebobcats Jan 1, 1776 South Carolina became a state. Jan 1, 1782 British army defeated and left Charleston Jan 1, 1786 capital moved from Charleston to Columbia Jan 1, 1843 Citadel opened for first class of cadets Jan 1, 1864 Confederal submarine sank Unions Housatonic Jan 1, 1963 Rivers High School in Charleston became first racially interngrated school in the US. Jan 1, 1983 Hilton Head Island became incorporated Jan 1, 2004 Tropical storm Gaston hit South Carolina Jan 1, 2010 Gold and silver replaced federal currancy in the state Oct 3, 2015 Hurricane Joaquin hit South Carolina