Theda Bara was one of the biggest stars in the early days of motion pictures. Her screen name was an anagram of "Arab Death." (Kewl!) She made 44 films from 1914 to 1926, when she married and retired from the screen.
Bara played a vampire in the 1915 movie A Fool There Was, and she became known as "The Vamp" which created the term. In 1917 she had her biggest role in Cleopatra, which became a megahit movie. Sadly, only about four of her films exist today. If you get the chance to see one, it would be worth it.
Mae Murray (1889 - 1965) was "The girl with the bee stung lips." She made 41 movies from 1916 to 1931. She began her career dancing with Vernon Castle (1887 - 1918), and became a star Ziegfeld Girl before making movies. Her big movie was The Merry Widow (1925) co-starring with John Gilbert (1899 - 1936). Mae was a victim of her own poor voice when talkies became popular.