Why was the battle of Thermopylae considered to be a turning point of the Persian War?

The Battle of Thermopylae took place at Thermopylae. Greeks were able to hold off Persian invaders for 3 days until a Greek traitor showed the Persians a way over the mountains. ... Xerxes' defeat was a turning point in history because it ensured that Greek culture could continue to thrive in the west.

the answer is a) james madison.

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.