Which important political structure originated in greece during the classical
era?

The important political structures that originated in Greece during the classical era was Democracy. Cleisthenes was the Athenian leader that introduced the concept of democracy or what he called "the rule of the citizens." He designed an effective system of government were citizens decided their rulers.

Explanation:

racism and segregation.

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation: