Answer:
A peaceful transition of power is a central tenet of American democracy.
Explanation:
It was first celebrated in Canada, in 1882. It was brought to the US by the travelers from Canada and it became a national holiday in Canada in 1894.
Mesopotamia introduced a more sedentary way of life by means of agriculture and animal husbandry. So for example, instead of the nomadic way of life, which is/was going hunting, foraging, and/or fishing.
Hopefully this is right and helpful. Good luck!