I think the answer for this one is C.
It brought religious unity to the colonies
Answer: President Dwight Eisenhower proclaimed standards for flying the American flag at half staff on March 1, 1954. Prior to this date, there were no official rules for flying the flag at half staff, which led to policies that differed from area to area.
Explanation:
It was "New Amsterdam" that was founded by the Dutch in the early-1600s and is now known as New York City, since they wanted to name this colony after the capital of their homeland.