1. Sometimes your eyes begin to water , or "cry" when you slice an onion. By slicing it you break open its cells and release a gas containing sulfur that mixes with the moisture in your eyes to form a tiny amount of mild acid. Your eyes make tears to wash it away!

2. Chewing Gum Trick: Chewing gum while chopping onions can help stop tears because it forces you to breathe through your mouth instead of your nose, carrying the gas away from your eyes.

3. Apple or Onion? If you hold your nose so you cannot smell, an onion, an apple, and a potato taste almost identical because your brain relies heavily on smell to distinguish their flavors.

4. World Record Giants: The heaviest onion ever grown weighed over 18 pounds (8.5 kg)—that is heavier than a average bowling ball!

5. Ancient Pyramids were Powered by Onions: Ancient Egyptian workers who built the pyramids were paid partly in onions. Egyptians also worshipped onions because their concentric inner rings represented eternal life.

6. Onions are one of the world's oldest cultivated crops, dating back over 7,000 years to the Bronze Age.

7. The Netherlands is the largest exporter of onions by total monetary value, accounting for roughly 25% of the global market (about $1 billion).