Shay's rebellion highlighted these problems by showing that the Articles of Confederation was not able to handle crisis well. It had no sympathy for the war veterans of the Revolutionary War who had to take out loans as they were off fighting. It showed that the U.S. had failed to protect and see the side of those in need.
The Reformation (or more specifically the Protestant Reformation) led to A. "the division of Christianity into Catholic and Protestant faiths." This was brought about by Martin Luther.
