America's 16th President was Abraham Lincoln. Lincoln was elected in 1860 and served until he was assassinated by John Wilkes Booth in 1865.
Lincoln is famous for his leadership during the Civil War, his eloquent speeches, and the signing of the Emancipation Proclamation. He is largely considered one of America's greatest leaders along with George Washington and Franklin Roosevelt.
Economists are the social scientists that focus their studies on scarcity, resources and profit motives. The economists not only follow the pattern in which the economy of a country is going, it also gives plans to improve the economy. They are a very important part of any civilized society. I hope it helps you.
Neutralists in the American Revolution were people who did not want to partake in the American Revolution and held neutral opinions about the independence of the United States. This included people such as Quakers, whose religion forbade them from fighting, people like shopkeepers and tavern owners who might lose business due to war or some Native American tribes who chose to stay neutral.
Answer: C) Warfare with others.
Explanation:
The earliest known people of Oklahoma were Osage, Quapaq, Caddo Witchita, Waco Tawakony, Comanche, Apache and several other tribes. When the white men started to encroach upon their land it led to constant warfare. Which was a major cause for the decline in their population. Another factor was that they were uprooted to make Oklahoma available for White men after 1865.