When did puerto rico officially become a u. s. commonwealth?

Explain how scientist from the scientific revolution and the catholic church tie together

In the latter stages of the civil war who was given the responsibility of winning the war for the north

How did its location near the sea most contribute to the growth of ancient greece? a. by supplying water for irrigating crops b. by providing easy access to trade routes c. by creating a natural barrier from enemies d. by generating power for watermills