Who was the longest reigning Ottoman sultan from 1520 to 1566?

Suleiman the Magnificent

Who stole Helen away from King Menelaus, sparking the Trojan War? Which boy band popularized the song "Bye Bye Bye"? Which animal's teeth never stop growing, making it chew constantly? Which U.S. state was the last to join the union? In what year did women first run as presidential and vice presidential nominees for a major American political party?