Answer:
The Treaty of Versailles
Explanation:
In 1919, a little under a year after a ceasefire was ordered, the countries in the war (besides the Central Powers converged to formulate an armistice to "bring everlasting peace", and form the terms of the peace treaty imposed upon the nations of the Central Powers, including the break up of the German Empire, Austro-Hungarian Empire, and acquisition of many Ottoman Empire territories, forming independent nations, and establishing overseas territories for the victorious nations (think British Palestine, Japanese Qingdao, etc). This was all signed on 28 June 1919.
John Adams was an ambassador to France during the American Revolution. Also served in Amsterdam securing a large loan that helped finance the war. He was also the first VP under George Washington, though Washington pretty much shut him out.
He died of congestive heart failure
The assimilation of Native Americans was a goal of the federal government.
During the late 1800's, the federal government had the goal of assimilating Native Americans into mainstream America. In this case, the government wanted Native Americans to act more like white farmers (which made up a majority of America). This resulted in several different laws and policies that would help enforce this idea. This includes the Dawes Act and the creation of Indian Boarding Schools.
Indian Boarding Schools were schools were Native American kids were sent to learn more about the English language, American culture, etc. Unfortunately, this system had many negative effects as it resulted in the destruction of some Native American cultures and languages.