1) In Hindu mythology, the Trimurti consists of the three major gods: Brahma (the creator), Vishnu (the preserver), and Shiva (the destroyer). They represent the cycles of creation, preservation, and destruction, respectively, and together embody the cosmic forces that shape the universe.

2) The oldest known musical instrument is a flute made from a bird bone, estimated to be around 43,000 years old.

3) The ancient city of Athens, Greece, is often considered the birthplace of democracy, where citizens had a say in the decision-making process.

4) The word "oxygen" contains two vowels: O and E.