Answer:
Another way that the two new superpowers differed was their economic policies (capitalism in the US, communism in the USSR) and their governmental systems (democratic republic in the US, totalitarianism in the USSR).
I'm pretty sure it was to get revenge on the Persians for their attack on the Greek people
Simon Bolivar
On July 24, 1783, Simon Bolivar was born in Caracas, in what is now Venezuela. Bolivar became the most powerful leader in South America, nicknamed “El Libertador” (the liberator) for helping nations become independent from Spain. Today, July 24 is celebrated as Simon Bolivar Day throughout Latin America