1) The Epic of Gilgamesh, originating from ancient Mesopotamia, is one of the oldest surviving works of literature and tells the story of the heroic king Gilgamesh and his quest for immortality. It explores themes of friendship, mortality, and the relationship between humans and the divine.

2) The word "triangle" contains four vowels: I, A, E, and E.

3) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.

4) The New York Stock Exchange (NYSE) is the largest stock exchange in the world.