The 50 States Each Summed Up In One Hilarious Photo

The More You Know

• Glaciers and ice sheets hold about 69 percent of the world's freshwater.
• The smallest unit of measurement in the universe is the Planck length.
• War pigs were used in ancient warfare to counter against war elephants, which feared the pigs (and their squeals) and would bolt. War pigs were sometimes lit on fire to enhance this effect.
• A team of six women programmed the first digital computer.