Power of 50 Credits: Mug, Mark Wemple; Lip mark, Davies & Starr/Getty Images. Other photos, left column: Bettmann/Corbis; Alamy; Ghislain & Marle David De Lossy/Getty Images; J. Howard Miller/Corbis; Kean Collection/Getty Images. Right column: Matthew Cavanaugh/EPA/Corbis; NEO Vision/Getty Images; Bettmann/Corbis. Images on mug from bottom left, clockwise: iStockphoto; Alamy; John Rensten/Getty Images; Alamy.