What was the main effect of the persian wars?
persia was no longer a threat to anyone.
athens and sparta began working together.
athens became the leader of the greek city-states.
sparta became the leader of the greek city-states.

The main effect of the Persian Wars was that Persia was no longer a threat to anyone, as it was defeated by Alexander the Great.

Explanation:

The Persian Wars were a series of conflicts between the Achaemenid Empire of Persia and the Greek cities that began in 490 BC and extended until the year 478 BC. The collision between the fragmented political world of ancient Greece and the huge Persian empire began when Cyrus II the Great conquered Ionia in 547 BC and had two critical moments in the two failed expeditions of the Persians against Greece, in 490 and 480-479 BC, known respectively as First and Second Persian War. The confrontation between Greeks and Persians, of which the Persian Wars were only a phase, lasted a total of more than two centuries and culminated in the conquest and dissolution of the Achaemenian Empire by Alexander the Great in the following century.

concurrent jurisdiction is the ability to exercise judicial review by different courts at the same time, within the same territory, and over the same subject matter. for instance, a domestic violence matter may be heard in either a general civil court or a family court in the same county. whichever court actually exercises its jurisdiction first will do so exclusively.

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.