What kind of contributions did the Persians give?

Answer 1

Do you want to clarify to whom and when?

One contribution they made was to the Spartan alliance late in the Peloponnesian War to enable the Spartan alliance to develop a navy which could match the Athenian one, leading to Athens' downfall.

Another contribution was their attempts to bring peace and order to the Western Mediterranean, which was why they invaded peninsular Greece in 480 (unsuccessfully), supported the Spartan alliance in the Peloponnesian War, and finally imposed the King's Peace in 387 BCE to end the endless ongoing wars between the Greek city-states which disrupted the whole region.

Answer 2

The main inspiration of the movie "300" of course! This film wouldn't of ever been produced if the Persians didn't actually fight the battle of Thermoplye with the Spartans and Greeks. Also, if the spartan general didn't recruit just 300 warriors to fight, and weren't for a more modest number, like 2,700 (this is how many they could of actually used) it wouldn't be as intense. Even if Xerxes didn't say "A thousand arrows will rain down from the sky and cover the sun!" and Leonidas' response "Then we will fight our battle in the shade." in the real fight, then the director would put in some cheesy line for him to say instead, like "Die Persian Infidel!"

Answer 3

The first Persian Empire laid foundations for the modern world today. Their contributions include the formation of Banks, introduction of taxation, welfare concepts, games such as Polo, and last but not least the invention of ice cream.