The primary difference between these two wars was that in the French and Indian War the colonists (who weren't that concerned with territory) were fighting alongside the British, while during the Revolution they were fighting against the British.
Answer:
5:30pm to 7:30pm on Oct 31st
The 13th Amendment is to abolish (rid) slavery. I'm not understanding the question as to what the purpose was. Can you be more specific or did you just need to know what it was?