Answer: i think it is U.S. Civil War
Explanation:
There is a Spring, Summer, Fall, and Winter everywhere, yes.
It brought people together for friendly competition and as a distraction it provided a new means of entertainment that all could enjoy
8. is a cheif executive and 9. is the president
When agriculture began, the early people farmed, and soon got a surplus of food. This surplus of food meant that not everyone had to farm, and that led to specialized jobs. Specialized jobs led to trade which led to economy, a major key point in a civilization.