1) The blue whale is the largest animal to have ever existed, with an average length of about 82 feet (25 meters).

2) Lightning strikes the Earth about 8 million times a day.

3) The Treaty of Tordesillas, signed in 1494, divided the newly discovered lands outside of Europe between Spain and Portugal, leading to the colonization of the Americas.

4) The Triple Crown in horse racing consists of three prestigious races: the Kentucky Derby, the Preakness Stakes, and the Belmont Stakes.