An estimated one third of all Jewish people alive in the world were killed during the Holocaust

The Japanese sent "Balloon Bombs" across the Pacific Ocean to America during WWII. The bombs killed a pregnant woman and five children

The Black Death is estimated to have killed 30–60% of Europe's total population

During the Great Depression, money circulation had fallen so low that the U.S. didn't mint nickels

Over 1 million soldiers died during that Battle of Stalingrad in World War II. That is roughly the same number of United States combat deaths in all of its wars put together