Answer:
1) July 28, 1914
2) the assassination of Archduke Franz Ferdinand of Austria-Hungary.
3) Germany, Austria-Hungary, Bulgaria, the Ottoman Empire, Great Britain, France, Russia, Italy, Romania, Japan and the United States
Explanation:
The first world war started on July 28, 1914. The assassination of Archduke Franz Ferdinand of Austria-Hungary was the main cause of starting world war 1. When Russia defend its alliance Serbia, Germany declared war against Russia and the world war begin. During the war, Germany, Bulgaria, the Ottoman Empire and Austria-Hungary were on one side while France, Russia, Britain, Italy, Romania, Japan and the United States on the other side.
It was primarily the economic policies of implementing taxes that
contributed to the rebellion of the colonist, especially taxes that came
through the Stamp Act and the Intolerable Acts.
The last Confederate officer to surrender was Stand Watie in June of 1865.
Historically speaking, America changes both through times of "division" and cooperation, since not all change is necessarily good, and sometime division leads to a better way of life, as with the case of the Civil War.
