Answer:~At the center, information about tides and currents was collected, more accurate charts and maps were drawn, techniques for determining longitude were improved, and new ship designs (such as the caravel) were developed
I would say that the best tools for establishing and preserving freedom are the Constitution, courts, and legislature in general.
The Constitution is a set of laws that all people within one country should follow and it is a document which guarantees their freedom and equality. Courts and other laws do the same thing as well.
<span>These amendments were virtually ignored in the South and did not contribute to the equal status of blacks until the middle of the 20th century.</span>
The answer has to be D. blues and jazz :) hope i helped
Jackson never liked the natives so he put together the Texas rangers to protect citizens from the Native Americans
