Answer:
Diamond
Explanation:
Diamond is the hardest known mineral, Mohs' 10.
Thirteen Colonies” is shorthand for the English-speaking colonies arrayed along the east coast of North America, which rebelled against Britain in 1775-83.
I believe the answer is: The printing press allowed mass production of books that spread new scientific ideas.
The invention of printing press make it easier for people to obtain information that they previously couldn't have dream to have access on. The number of Literacy rate after the printing press soar along with the number of scholars who choose to pursue higher education.
The purpose Missouri Compromise was to settle between anti and pro slavery states