India's railway system is the fourth largest in the world and employs over 1.3 million people.

Kenyan marathon runners dominate due to a combination of high-altitude training, genetics, and lean running economy.

Tax avoidance and tax evasion both increase as tax rates rise, which can reduce total revenue.

The CIA’s Project ARTICHOKE preceded MK-Ultra in studying interrogation methods.

The Boston Marathon is one of the oldest annual marathons.

Operation Northwoods was a proposed U.S. plan in the 1960s that was never carried out.

In Chinese mythology, dragons are benevolent creatures associated with water, rain, and imperial power — opposite to Western dragons.

Aboriginal Australians have oral traditions and songlines that preserve ecological knowledge going back tens of thousands of years.

The maximum legal weight for a cricket ball is 163 grams — close to a baseball but harder.