When did the us supreme court rule that bus segregation was unconstitutional?

What stalled germany's initial invasion into france in 1914

Article ii "each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right, which is not by this confederation expressly delegated to the united states, in congress assembled."—articles of confederation which of the following principles of american democracy does this quote best represent? social contract natural rights federalism rule of law

In the course of illness senerational campaign against stephen douglas in1858 abraham declared that