Answer:
George Washington elected president of the United States
Founding of Washington D.C. as the capital of the United States
Louisiana Purchase made by US President Thomas Jefferson
Missouri Compromise
Monroe Doctrine begins under President James Monroe
Mexican War between the United States and Mexico
Compromise of 1850
War of 1812 Dred Scott v Sandford ruling issued by the US Supreme Court
Abraham Lincoln elected president of the United States
The US Civil War begins
13th Amendment ratified
Impeachment trial of President Andrew Johnson
14th Amendment ratified
15th Amendment ratified
Explanation:
Research by some scholars provides population estimates of the pre-contact Americas to be as high as 112 million in 1492, while others estimate the population to have been as low as eight million. In any case, the native population declined to less than six million by 1650.
I believe there is a book on the matter as well. Good luck. :)
Well no one city state won, the Peloponnesian League did, but it was led by Sparta, so that would be the best bet. As for the event most responsible for the victory, Sparta gained the support of the Persian empire, which allowed Sparta to raise a large fleet to challenge Athens.
The Spanish failed to plan for the hostility of the Comanche and Apache Indians living in the area. Thus, the difficult geography, the weak missions, and hostile Indians were the main causes of the near failure of the Spanish colonies in Texas