Incidentally
Slavery was still allowed in England until 1856 (of Gypsies)
Free blacks and Mulattoes could not live in New Mexico, USA, from 1857 until 1866.
Slavery was abolished in New Mexico, USA, 1866-1867.
So maybe the sharks are still waiting.
Slave trade was outlawed in the British Empire in 1807 and in the U.S. in 1808. Mexico outlawed slavery prior to 1835.