He gave them useless glass beads.
He forced them to work.
He brought several of them back to Spain.
He drank water out of their gourds.
Congress had decided that once a slave traveled into a free state, they were free and they could never be enslaved again. But in the Dred Scott decision, they changed their mind and people no longer had to honor "once free, always free."
Hope this helps!
The French and Indian war tool a lot of lives indeed than the American Revolution. It also involved a lot of countries, but the one that lost the most was France as they were able to lose their foothold in 1760.
The second sentence sounds correct...