1) The Industrial Revolution, which began in the 18th century, brought about significant changes in agriculture, manufacturing, mining, and transportation.

2) Sloths only poop once a week, and when they do, they lose about one-third of their body weight.

3) The musical "Les Misérables" is one of the longest-running shows in the West End and Broadway, with over 13,000 performances.

4) The word "chocolate" contains four vowels: O, O, A, and E.