An Operation Smile volunteer reverses an oxygen mask so a child with a cleft condition can blow a bubble for the first time in Guadalajara, Mexico. (Operation Smile Photos)
Photo credit: Image by Bob Sandberg/Library of Congress. (cropped) – Professional baseball player <a href="https://en.wikipedia.org/wiki/Jackie_Robinson" title="en:Jackie Robinson">Jackie Robinson</a> swings a bat in 1954.