The Arab slave trade trafficked over 20 million Africans into the Middle East. But today, there are hardly any Black populations in some of those countries. And it is not because they returned home. No. The reason is far darker than you imagine. The first thing Arabs did when they captured enslaved African men was castrate them. Their testicles were crushed between rocks. Sometimes the penis was cut as well. Thousands died from the procedure. This ensured that these men could never father children with enslaved women. It also meant they could never have children with their own women. They were stripped of their ability to reproduce, denied the chance to build families, and worked to death.