Describe 2 events in human history and in what way the events allowed human

populations to grow and thrive.

3 answers

again, google is your bff.
Which three events have you chosen?
I wonder if pre-history is allowed. (domestication of dogs, cattle, horses, sheep, chickens .....)
wheel? copper, bronze, iron, lead, oars, sails ? my oh my, no end of stuff :)