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

Interesting choice

Loophole

Life expectancy in Ancient Rome was between 20 and 30 years