Why indianapolis called circle city?

For more than a century, Indianapolis has been Circle City, named after the Monument Circle in downtown Indy. This circular street surrounds the proud Soldiers and Sailors Monument in the city center. The plan on which the city of Indianapolis is based is centered (so to speak) around a site called Monument Circle. Originally named Circle Street in the 1821 plan, it now includes the Soldiers and Sailors Memorial, four bronze statues of notable Indiana figures, a staircase, two water pools and views of the state capitol.