Well that's easy it's the last one that all slaves should be freed through the United States.
D. Science Fiction...............
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Instituted in the hope of avoiding war, appeasement was the name given to Britain's policy in the 1930s of allowing Hitler to expand German territory unchecked.
Its number 1: battle of san jacinto