Answer:
I think its brown, sorry if I'm wrong.
Explanation:
John Wallis was an English clergyman and mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court. He is credited with introducing the symbol ∞ to represent the concept of infinity.
SEATO continues to oppose the actions of NATO.
SEATO was dismantled in 1977, after being a failure, because internal disputes hindered the process of blocking communist efforts in Asia. The organization's headquarters were in Bangkok and eight nations were part of the organization. However, SEATO funded many cultural and educational sites still present today.
Feudalism is the dominant social system in medieval Europe, in which the nobility held lands from the Crown in exchange for military service, and vassals were in turn tenants of the nobles, while the peasants were obliged to live on their lord's land and give him homage, labor, and a share of the produce, notionally in exchange for military protection.<span />
The usual ending for Reconstruction has always been 1877. Reconstruction policies were debated in the North when the war began, and commenced in earnest after Lincoln's Emancipation Proclamation, issued on January 1, 1863.