Henry CLAY and Cassius CLAY are two famous figures in American history. Henry CLAY was a prominent statesman and politician who served as a United States Senator from Kentucky and Speaker of the House of Representatives. He was also a leader of the Whig Party and is known for his role in helping to bring about the Compromise of 1850. Cassius CLAY, on the other hand, was an African-American boxer and activist who changed his name to Muhammad Ali after converting to Islam. He was a three-time world heavyweight champion and is widely considered one of the greatest boxers of all time.