The fastest recorded serve in tennis was 163.7 miles per hour by Sam Groth in 2012.

The Vikings used to give kittens to new brides as essential household gifts.

More people die each year from hunger than from all forms of violence combined.

The Talmud is the central text of Rabbinic Judaism — a compilation of legal, ethical, and ritual discussions.

The word 'checkmate' in chess comes from the Persian phrase 'Shah Mat' meaning 'the king is dead.'

Alfred Hitchcock never won an Academy Award for directing despite five nominations.

The Shinto shrine of Ise in Japan is demolished and rebuilt every 20 years — a tradition that has continued for 1,300 years.

Dressage — precision horse riding — scores horses and riders on over 30 individual movements in a freestyle routine.

Millionaires often live below their means.