Which country was the first to lead the way in exploration?

Explanation:

During the 15th and 16th centuries, leaders of several European nations sponsored expeditions abroad in the hope that explorers would find great wealth and vast undiscovered lands. The Portuguese were the earliest participants in this “Age of Discovery,” also known as “Age of Exploration

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.