Vincent van Gogh sold only one painting during his lifetime — 'The Red Vineyard' — for about $2,000 in today's money.

A regulation NFL football must be inflated to between 12.5 and 13.5 psi.

The tradition of the white wedding dress was popularized by Queen Victoria in 1840 — before that, brides wore any color.

The first modern Olympic Games were held in Athens in 1896 with 14 nations participating.

Biomass burning — including agricultural fires — produces more greenhouse gas than global aviation.

Jim Thorpe won the pentathlon and decathlon at the 1912 Olympics — King Gustav V of Sweden called him 'the world's greatest athlete.'

The first graphic novel is often considered 'A Contract With God' by Will Eisner, published in 1978.

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

The fastest recorded serve in tennis by a woman is 220 km/h by Georgina Garcia Perez.