Answer:
A dynastic cycles
Explanation:
It’s the only one that it included or linked to it so I’m correct
The American West was indeed a land of great opportunity from 1865 to 1900 in the sense that there was an abundance of land and resources available to all those willing to go west.
Shell shock is basically PTSD and it was thought to be caused by soldiers being exposed to explodeing shells
The two years prior to World War I in the region of the Balkans saw the rising of Serbian nationalistic Groups. Later came the assassination of the Archduke Ferdinand in the Balkan City of Sarajevo, main cause of the war.
Answer:
the first one should be the answer sorry if its wrong