The exact date is unknown but between 550 bc and 539 bc.
On 28 August 1963, more than 200,000 demonstrators took part in the March on Washington for Jobs and Freedom in the nation's capital. The march was successful in pressuring the administration of John F. Kennedy to initiate a strong federal civil rights bill in Congress.
Three obligations the Constitution places on the National Government for the benefit of the states are
1. Each state will have a republican form of govt
2. Protection against invasion and domestic violence
3. Must respect the Territorial boundaries of each state.
Sahel is a very desert like area. It is hot but not as humid as a rain forest would be because of the lack of water.