Which major accomplishment was achieved by darius i of persia?

the introduction of democracy in greece

the institution of a single language for government

the conquest of china

ending the practice of slavery throughout the empire

The right answer is "the institution of a single language for government ".

Darius organized the empire, dividing it into provinces (satrapias), and putting satraps to govern them. He organized a new unified monetary system, and made Aramaic the official language of the empire. He also instituted construction projects throughout the empire, especially in Susa, Pasargada, Persepolis, Babylon and Egypt - where he was also responsible for codifying the laws.

christopher columbus (1492–1504)

jewish people sniffed up all of the money, thus making it hard for society