How did the rise of irrigation lead to the start of cities

Irrigation provided Mesopotamian civilization with the ability to stretch the river's waters into farm lands. This led to engineering advances like the construction of canals, dams, reservoirs, drains and aqueducts. One of the prime duties of the king was to maintain these essential waterways. Flat With Few Mountains

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explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships