“Africa is referred as the cradle of humanity.” With tangible facts backed by examples. Justify this statement.

Why would the free rider problem prevent a private business from investing in the building of a city sidewalk?

1. how did manifest destiny spur nation building in the u.s.? 2. how did the idea of “the nation” begin to change? 3. how were the unifications of germany and italy similar? 4. what problems did the austro-hungarian empire have? 5. what domestic issues did england and france have?

Louisiana purchase timeline can someone give me the answers, it's due tomorrow.