Time period when the Space Race occurred?

How did southern states respond to the ratification of the fourteenth amendment?

How do you imagine life would be without the invention of the typewriter? would computers have been invented?

Ineed asap! ! what is the name of the system in which each branch of the u. s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances