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Threshold 7: Agriculture (2:37)

Key Ideas

As this video progresses, key ideas will be introduced to invoke discussion.

Key Ideas

Think about the following questions as you watch the video

  1. 00:17 How long ago did the last ice age end?
  2. 01:10 Why was human population growth after the ice age a problem for human communities?
  3. 01:33 Why was a warmer, stable climate important to the development of agriculture?
  4. 01:50 What is domestication?
  5. 02:10 Why does David Christian call agriculture an energy "bonanza" for humans?