At the height of its power, the Roman Empire comprised about twelve percent of the world's population

Four out of every five German soldiers who died during World War II died on the Eastern Front

It is estimated that 60 million people, or 3% or the world's population, died during World War II

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