Roman slaves wore collars of iron with messages like a modern dog collar, for example this one, which reads “I have run away; hold me. When you shall have returned me to my master, Zoninus, you will receive a solidus”
When Alex Tizon was a small child in the 60s, he moved with his family from the Philippines to the US along with the family’s domestic servant, Lola. It was not until Tizon was nearly a teenager that he realized that Lola was not employed as a servant by his parents… she was a slave.
Wealthy Ancient Greeks sometimes sent their slaves to sit on the public toilets (made from slabs of marble) to warm it up “in anticipation of their arrival”.
William Still, the father of the Underground Railroad, interviewed and kept records of every escaped slave he came across. Once, while interviewing a man, he discovered that the man was actually his long-lost brother.
Thomas Jefferson built a clock on the outside wall of his house with only an hour hand, as he believed an hour hand would be accurate enough for his slaves.
Almost all major American Grocery chains continue to profit from the use of Slavery in Thailand’s peeled shrimp industry.
After escaping from slavery, an illiterate Harriet Tubman was spotted by a former master on a train. She decided to pick up a nearby newspaper and pretended to read it. The master ignored the black woman reading because he knew Tubman couldn’t read.
In 1861 a slave took over a confederate ship and delivered it to the Union. He was then given the ship to command during the Civil War.
Ants enslaved by other ant species rebel against their masters by neglecting the work they’re assigned to do, and even killing the master species’ young. The slaves may not be able to save themselves, but by rebelling they can protect nearby relatives from the same fate.