Answer:
USA, Canada and the UK were one of the first world countries in developing, specially in the school system. They invented social studies in order to teach political science, history and geography so the students could have better understanding about the world around them.
Answer:
Capitalism.
Explanation: Last time someone tried anything else, Russia ended up with Lenin, and China got Mao Zhedong. I'll take my flipping chances with this mess of a country any day.
They allied with settled neighbors to repel common enemies.
