Rachel Cavanaugh

Photographers have documented the major events of our time, from wars and protest marches to space landings, historic speeches, scientific discoveries, sporting events, and other unforgettable moments.

The best cure for food poisoning is preventing it in the first place.

Can you take a guess as to how many public schools are in the U.S.? Do you have any clue as to how many billionaires might be residing there? Read on to find out—and learn a thing or two about each of these selection’s cultural significance and legacy along the way.

From Rachel McAdams to Elon Musk...