1) The world's oldest living plant is believed to be a clonal shrub called "Old Tjikko" in Sweden, estimated to be over 9,500 years old.

2) The highest-grossing film of all time is "Avengers: Endgame," which has earned over $2.79 billion at the global box office.

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

4) The development of the World Wide Web Consortium (W3C) and web standards has ensured interoperability and compatibility across different web browsers and devices.