Which persian empire attacked the athens for aiding greek colonies in their rebellion against persian rule

In 499 BC the Greek cities on the coast of Turkey rebelled. Darius quickly crushed the revolt but in 490 BC he decided to invade Greece to punish the Greeks for assisting the rebels. However the Persians were defeated by the Athenians at the battle of Marathon. In 480 BC another Persian ruler, Xerxes, invaded Greece.

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native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.