What is the significance of 1619? Where did it take place, and why? What key events led up to the development of slavery in the US?

Explain in detail why hitler had over 6 million jewish people killed during the holocaust and why

What happened right after the battle of concord ?

How does the supremacy clause of the u. s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u. s. constitution overrules each state constitution