1) The game of rugby originated at Rugby School in England and has since evolved into different versions, including Rugby Union and Rugby League.

2) The Mona Lisa, painted by Leonardo da Vinci, is one of the most famous and valuable artworks in the world.

3) The Arctic Ocean is the smallest and shallowest ocean, located at the North Pole. It is covered by sea ice for much of the year.

4) The word "yesterday" contains three vowels: E, A, and A.