2/6/19

Today we started a new chapter on early river valley civilizations. In this unit, we get into the civilizations of Mesopotamia, China, Ancient Egypt and the Indus valley. The main ideas in this unit are
- Interaction with the Environment
 they talk abut the fertile river plan with they invented for farming, and the limited growing area available for some civilizations and others not so much
- Power and Authority
 the civilizations started to use kings, military leaders, and Messiahs as leaders for communities. they were able to create/enforce laws for their civilization and create their own punishments.
- Science and technology
 there were many very important materials made at this time like bronze/ bronze tools, the wheel, plow, writing and mathematics that were spread through trade and war.

Early civilizations farmed a lot but faced may floods. in southwest Asia, the lands where very dry, almost like a dessert. However, being surrounded by two seas, the Mediterranean and the Persian Gulf, resulted in lots of flooding. the water would turn the dessert drylands to a thick mud called silt. Perfect for agriculture, this was the best part of Asia to farm.

Disadvantages-
 unpredictable flooding
 no barriers
 natural resources were scarce

solutions
 dug irrigation holes to trap ater and carry to soil without flooding
 built city walls
 trained goods for raw materials



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