The ozone hole was discovered in 1985 — international action (Montreal Protocol 1987) has allowed partial recovery.

In 2000, a massive fireworks accident damaged part of a Dutch city.

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

At the 1904 St. Louis Olympics, the marathon was so chaotic that the first man to finish was disqualified for riding part of the way in a car.

Facial expressions are recognized across many cultures.

The average professional soccer player runs about 10–13 km per match.

The marathon race commemorates a legendary run in ancient Greece.

The first Olympic marathon winner, Spiridon Louis, was a Greek shepherd who had never trained formally.

In 1904, an Olympic marathon included bizarre obstacles and poor organization.