Which power-couple unified spain and completed the reconquista

Ferdinand and Isabella were the biggest power couple of there time

They are remembered for sponsoring Christopher Columbus' voyage across the Atlantic in 1492

for (a) a tragedy was considered a main greek drama and it influenced alot of others. for (b) the actors in greek theater were named as aeschylus, sophocles, and euripides and sometimes playwrites. for (e) in a semi-circular theater called the "orchestra.". we'll the question was explain where the namer actors originated.

hope this : d