<span>The Declaration of Constitutional Principles (recognized unceremoniously as the Southern Manifesto) was a text written in February and March 1956, in the United States Congress, in disagreement to ethnic incorporation of public places. The Congressmen just made a draft of the text to stand the milestone Supreme Court 1954 presiding Brown v. Board of Education, which resolute that separation of public schools was unconstitutional. So the answer B.</span>
On June 16, 1976 the Soweto Students Uprising began (Soweto is a neighborhood of Johannesburg). Around 20,000 students went to the streets and made a peaceful protest opposing to Afrikaan as the official language for instruction in schools. The government's responde was violence, killing hundreds of students, as a result, the revolt spread through the whole country and carried on until the following year. These events changed the socio-political landscape in South Africa which main problem was the Apartheid.
I sure don't have time to write an essay! But the first one sounds alright.
One of the early Chinese civilizations was located between the two main rivers, (google them for more details) Anyways, unlike most of China, the plain between the two rivers is fertile, allowing the people to grow rice and other foods. Along with that, I am certain that they had mountains and deserts to the west. If they could be used against natural disasters (I doubt they'd come in west) it'd be helpful! Good day