Today, Halloween is an excuse for costume parties, horror films, haunted houses and other activities around the popular themes of ghosts, witches, Dracula, werewolves and the supernatural. Child... Leia mais

Albert Einstein’s image is everywhere, adorning posters in college dorms, advertisements on the Web, T-shirts and coffee mugs. Time magazine anointed him Person of the Century, and just ab... Leia mais

On March 17, Irish people all around the world celebrate St. Patrick's Day. St. Patrick is Ireland's national saint and hero. He is said to have driven all the snakes from Irela... Leia mais