Answer:
It all began when the Romans overthrew their Etruscan conquerors in 509 B.C.E. Centered north of Rome, the Etruscans had ruled over the Romans for hundreds of years. Once free, the Romans established a republic, a government in which citizens elected representatives to rule on their behalf.
Then the Great Roman Empire started its supports in its historic construction.
Source:
https://www.ushistory.org/civ/6a.asp
Answer:
In WW1 the Japanese were left out of the rewards of winning and sustained substantial amounts of debt. They were almost silenced and ignored. They didn't get anything they were promised. This is why they switched sides in WW2
Explanation:
Well some of the inventions during the 1920s would be the radio,and Henry fords automobile was introduced. So their lives became more modern in a way
When the Nazi's fled and the Russians (I believe) invaded was a huge turning point giving jews and all others captured, hope and freedom.
It think it's "causing the removal of tree" becuz the more population grow the more building have to be made. Hope this help