The Han Dynasty (206 BC–220 AD) established the civil service examination — creating a meritocratic bureaucracy.

Ancient Romans ate a breakfast food called ientaculum — often bread dipped in olive oil or wine.

Broccoli is a man-made vegetable — it was cultivated from wild cabbage by ancient Italians.

Bananas are berries in botanical terms, but strawberries are not.

Lemons float but limes sink — limes are slightly denser than water.

Raindrops are not actually teardrop-shaped — they are spherical when small and flatten into a hamburger bun shape as they grow.

The first known recipe ever written was for beer — by ancient Sumerians around 1800 BC.

You are more likely to encounter repeated numbers than pure randomness suggests.

A pomelo is the natural ancestor of the grapefruit — grapefruits are a hybrid of pomelo and orange.