I think Copernicus did that.
Answer:
A. Climate
Explanation:
If it is a long period of time, than climate
Answer/Explanation:
A) Charlemagne was crowned on Christmas day in the year 800
Have a nice day :)
Well an obvious answer would be slavery, depending on how late you're talking. After slavery ended, the country began what is known as the "industrial revolution". The north had already begun industrializing for a while, but in the 1870's and beyond, things ramped up quite a bit. Factories for clothes, shoes, farming equipment, packaged foods, and etc. became more popular. You also had coal mines, railroads, and steel mills. This showed the country was moving in the direction of mass production, and moving away from agricultural ways of living. This also meant child labor, which led to many child labor laws in the later years. This also meant many moved out of farming communities, and into larger, noisy, and crowded cities. Many immigrated to the US to take advantage of that, which led to some tension between communities.
Hope that helps!
Solon (around 590 BC), Cleisthenes (508 BC), and Ephialtes (462 BC) contributed to the development of democracy. Usually, the establishment of democracy attributed to Cleisthenes, since the laws of Solon were <span>abolished</span> by Pisistratus and Ephialtes just improved some settings of Cleisthenes.
I'm greek, so I hope I've helped you.