<P> On January 11 , 1820 , the Indiana General Assembly authorized a committee to select a site in central Indiana for the new state capital . The state legislature approved the site , adopting the name Indianapolis on January 6 , 1821 . In April , Alexander Ralston and Elias Pym Fordham were appointed to survey and design a town plan for the new settlement . Indianapolis became a seat of county government on December 31 , 1821 , when Marion County , was established . A combined county and town government continued until 1832 when Indianapolis incorporated as a town . Indianapolis became an incorporated city effective March 30 , 1847 . Samuel Henderson , the city 's first mayor , led the new city government , which included a seven - member city council . In 1853 , voters approved a new city charter that provided for an elected mayor and a fourteen - member city council . The city charter continued to be revised as Indianapolis expanded . Effective January 1 , 1825 , the seat of state government relocated to Indianapolis from Corydon , Indiana . In addition to state government offices , a U.S. district court was established at Indianapolis in 1825 . </P>
<P> On January 11 , 1820 , the Indiana General Assembly authorized a committee to select a site in central Indiana for the new state capital . The state legislature approved the site , adopting the name Indianapolis on January 6 , 1821 . In April , Alexander Ralston and Elias Pym Fordham were appointed to survey and design a town plan for the new settlement . Indianapolis became a seat of county government on December 31 , 1821 , when Marion County , was established . A combined county and town government continued until 1832 when Indianapolis incorporated as a town . Indianapolis became an incorporated city effective March 30 , 1847 . Samuel Henderson , the city 's first mayor , led the new city government , which included a seven - member city council . In 1853 , voters approved a new city charter that provided for an elected mayor and a fourteen - member city council . The city charter continued to be revised as Indianapolis expanded . Effective January 1 , 1825 , the seat of state government relocated to Indianapolis from Corydon , Indiana . In addition to state government offices , a U.S. district court was established at Indianapolis in 1825 . </P>
when did indianapolis become the capital of indiana
when did indianapolis become the capital of indiana
January 1 , 1825
January 1 , 1825