1) The world's first paper money was created in China over 1,000 years ago.

2) The pho, a Vietnamese noodle soup, is a signature dish of Vietnamese cuisine. It typically features a flavorful broth, rice noodles, and various toppings, such as thinly sliced beef or chicken, herbs, bean sprouts, and lime. Pho is often enjoyed for breakfast or as a comforting meal any time of the day. It is known for its complex flavors, aromatic herbs, and the balance between the savory broth and fresh ingredients.

3) The word "mountain" contains three vowels: O, U, and A.

4) The longest-running TV show in history is "The Simpsons," which has been on the air since 1989 and has over 700 episodes.