Slavery...yes. You know that the Nation of Islam published a tome back in the 90's called 'The Secret Relationship Between Blacks and Jews' which was far more empirical than many Jews wanted to admit. It related that in the years of the Transatlantic Slave Trade, three times as many slaves went to South America as to North America, and that the South American slave trade was run by Jews. The book named names, many of them. But Jews and slavery weren't restricted to South America.
During the Civil War, Confederate president Jefferson Davis named Judah Benjamin, a Louisiana Jew, lawyer, and plantation owner, as both the Confederate Secretary of War, and later as Confederate Secretary of State. He was Davis's closest adviser. Benjamin was hated by the American government, because it was no secret that his affluent Jewish slave-trade connections in the Caribbean, and the blockade-running industry they supplied with British muskets and powder, kept the Civil War going at least a year longer than it should have. He knew he had a rope waiting for him if the Confederacy lost. So he fled to England in 1865.
There were many Confederate slave-owning Jews. They picked up muskets and fought with the Confederate army as well. The only Jewish military cemetery anywhere in the world outside of Israel, is located in South Carolina. Everyone buried there, nearly all of them slave-owners, fought for the Confederacy.