Before slave trade, what was african culture like?

What were the main features of the aristotelian-ptolemaic model of the cosmos

How did geography impact the development of the early russia?

Did the spanish settlers and missions have a positive effect on world history? why, what did they do that was positive? why was the treaty of paris (1763) good for the world/world history? did the plymouth colony have a positive effect on world history? why, what did they do that was positive?