Answer:
He protested the practice of apartheid.
Explanation:
Nelson Mandela was a South African who was born in a poor family, but later on became greatly involved in politics. He started protesting against the <em>apartheid</em> <em>(a system that favored the segregation between the whites and the blacks)</em> together with the other members of the<em> African National Congress </em><em>(ANC). </em>They started with a non-violent resistance. <u>This escalated the issue being protested and many blacks joined to protest by violating the laws</u>. Later on, he planned on having a guerilla warfare; however, his plan was sabotaged. He was imprisoned for<em> 27 years, </em>but this made the activists even stronger. He was only released when the President of South Africa ended the apartheid due to international pressure in <em>1990</em>.
The change in breastplates and helmets contribute to decline of the Roman Empire by weakening the the military. It weaken them because the removal of it promote laziness and negligence of training and the such. It also removes the protection against ranged weapons which caused many casualties.
Answer:
Stagg Field, at the University of Chicago, is where the first nuclear pile (the Chicago Pile-1) was built.
Explanation:
The Chicago Pile-1 was an American nuclear reactor research reactor at the University of Chicago. On December 2, 1942, the scientists created the first controlled chain reaction using the reactor.
Chicago Pile-1 was part of the Manhattan Project, the American attempts to build an atomic bomb, during World War II. It was located in a former squash court under Stagg Field's western stands. Stagg Field had been the home arena for the university's American football team and was located relatively centrally in Chicago. The project was led by Italian nuclear physicist Enrico Fermi, who had dropped out of the United States when he received the Nobel Prize in physics in 1938.