1) In Greek mythology, the Trojan War is a legendary conflict between the city of Troy and the Greeks, sparked by the abduction of Helen of Troy. It is immortalized in Homer's epic poems, the Iliad and the Odyssey, and features famous heroes like Achilles, Hector, and Odysseus.

2) The world's first stock exchange was established in Amsterdam in 1602.

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

4) The fingerprints of koalas are so similar to humans that they have been mistaken at crime scenes.