1) The first consumer digital video recorder (DVR), the TiVo, was introduced in 1999 and allowed users to record and store television programs for later viewing.

2) In Japanese mythology, deities known as kami are revered and play integral roles in Shinto beliefs and practices. Figures such as Amaterasu (goddess of the sun), Susanoo (god of storms), and Izanagi and Izanami (creators of the world) feature prominently, along with legendary creatures like dragons and kitsune.

3) The Indian Ocean is the third-largest ocean and is characterized by its warm waters and diverse marine life.

4) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.