March 31 (UPI) -- Those born on this date are under the sign of Aries. They include: -- Pope Pius IV in 1499 -- Philosopher Rene Descartes in 1596 -- Pope Benedict XIV in 1675 -- Musician Johann Sebastian Bach in 1685 -- Musician Franz Joseph Haydn in 1732 -- International Boxing Hall of Fame member Jack Johnson in 1878 -- Educator/writer Muriel Hazel Wright in 1889 -- Actor/musician Richard Kiley in 1922 -- Labor rights activist Cesar Chavez in 1927 -- Actor William Daniels in 1927 (age 99)