Who made and perfected the movable printing press

Which amendment best addresses the fears of the federalists like james madison,that rights and powers not specifically listed in the consttuition or bill of rights will not be protected in the future

Which physical feature minimizes population density in northern africa?

The system of checks and balances was designed for what purpose? fear of strong state power to keep power out of one branch to appease the southern states to allow the judicial branch to have equal power