Yes, back then thousands of years ago everyone traded to get what they are needed.
They were in 2 different sides. The Abolitionists and the Pro-Slavery politicians. Some were heavily against slavery and started a movement to abolish it, some even tried freeing slaves. Pro-slavery politicians were in heavy support of it and did everything in their power to keep it alive in the South. It got to the point where all the Southern States threatened to secede from the United States in the late 1850s, and even caused Virginia to split into 2 states, Virginia and West Virginia.
Operation Overlord was the code name for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied western Europe during World War II. Operation Overlord happened simultaneously with the Normandy landings and the Operation Overlord and was a 1,200 plane airborne assault preceded an amphibious assault involving more than 5,000 vessels.
We are currently in the twenty-first century. The 1900s were the twentieth century, 1800s the nineteenth century, etc.