How might a balance of power prevent war?

Diarys letters and memoirs are good examples of what

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?

Which is not characteristic of capitalism? a) market e-commerce b) supply and demand c) freedom of competition d) a society without social classes