[1] The 10-acre (4.0 ha) statehouse grounds were donated by four prominent Franklinton landholders to form the new state capitol.

[2] As the city's downtown began to empty in the mid-20th century, several buildings around the square were demolished.

Programs for tourists include the Columbus Art Walk's Capitol Square tour, taking visitors around historical and architectural sites, sculptures and other landmarks.

[9] Recent protests included the Ohio's stay-at-home order in the COVID-19 pandemic and the handling of the murder of George Floyd.

[10] Riots and protests over George Floyd took place in the city, centered on the square from May 28 into July, with early violent protests leading to damaged storefronts across downtown Columbus, with graffiti, trash and looting around much of downtown.