What human observations led to the birth of agriculture and animal husbandry? When and where did this happen?

People found that if seeds of wild-growing cereals fell into the ground, then plants grew from them. This observation led to the birth of agriculture.
Hunters often brought home the cubs of slain beasts. Small animals became so used to humans that they became domesticated. This is how animal husbandry appeared.
The rudiments of agriculture and animal husbandry, found in Asia Minor, are 10-12 thousand years old.

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