The Treaty of Fort Laramie signed in 1851 was especially significant for Western expansion since i<span>t enabled the safe travel of white immigrants on the Oregon trail upon the guarantee of Native Americans. The treaty also served as a peace treaty for the eight tribes that are often at odds with each other. </span>
The main reason why President Johnson was unable to stop radical Republicans from putting the reconstruction plan into action is because he simply lacked a congressional majority of backs for his plan.
The encyclopedia project reflected the age of Enlightenment because it was a project to educate the general population. It didn't just offer to educate the people of the upper classes, but the encyclopedia as it contained so much information about a vast number of different things, it let the people who wouldn't normally have as much information have an opportunity to have a broader view on a number of aspects. Denis Diderot was the co-founder, chief editor and contributor the Encyclopedia with Jean le Rond D'Alembert.