Prince George, who is third in line to the British throne, celebrates his first birthday on Tuesday. Take a look at the family tree of the British monarchy and learn a bit about George's great-grandmother, Queen Elizabeth.
JFK was assassinated riding in the motorcade in Dallas, Texas 50 years ago. Years later his legacy still lives on through his influence on the Peace Corps, the Space Race and in Civil Rights. Take a look at this interactive to review a timeline of important events, as well as, watch and listen to powerful JFK speeches.