Q: Answer this question:

when did the 50 cent coin come out??

A: December 1, 1794

Q: Answer this question:

who said psychology is the science of mental life??

A: William James

Q: Answer this question:

when did the pennsylvania colony became a state??

A: September 3, 1783

Q: Answer this question:

when was the printing press invented in ancient china??

A:
before the 8th century CE