1) The word "school" contains two vowels: O and O.

2) The sport of golf originated in Scotland and is played on courses with 18 holes, each with a designated par score.

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

4) The invention of the printing press by Johannes Gutenberg in the 15th century revolutionized the spread of knowledge and played a key role in the Renaissance.