They perform the most essential tasks
The battle of fsllen timbers is significant was that it was the final battle of the northwest indian war, a struggle that is between the Native american and the western confederacy. anthony wayne decisive victory forced native americans to accept hid peace terms.
The direct cause of WWI was the assassination of Archduke Franz Ferdinand at Sarajevo on 28 June 1914.
The correct answer is that the Treaty of Torcdesilias divided the land outside of Europe between Spain and Portugal. The effect of this is that much of the New World was, by Treaty, Spain's land.