What helped Darius I effectively rule the Persian Empire? He trapped and destroyed the Greek navy.
He invaded Greece and won a surprise victory.
He founded Zoroastrianism and rejected polytheism.
He constructed the Royal Road and expanded trade.

What did sargon's empire have in common with other mesopotamian city-states? a. it extended over a greater territory than anyone had ever conquered before. b. it fought with surrounding city-states. c. it covered an area from the mediterranean sea to the persian gulf. d. it had a professional army.

What was the historic border between the united states and mexico?

The 15th amendment to the u.s. constitution, ratified in 1870, deals with what issue? a. prohibition of alcohol b. voting c. declaring war d. free speech