The Buxton Memorial Fountain was built by Charles Buxton to celebrate the Slavery Abolition Act of 1833 and the achievement of his father, the abolitionist Thomas Fowell Buxton, and his associates who led the parliamentary campaign to abolish slavery. The memorial fountain was built in Parliament Square in 1865-6, and re-erected in Victoria Tower Gardens, Westminster, in 1957. Following extensive restoration by The Royal Parks, the memorial was unveiled on 27 March 2007, to mark the bicentenary. The listed monument was also upgraded from Grade II to II* in 2007.