1) In Norse mythology, Ragnarok is a cataclysmic event that signifies the end of the world. It involves a series of apocalyptic battles and natural disasters, leading to the destruction of the gods and the world as it is known. From the ashes, a new world and a new generation of gods emerge.

2) The sport of golf originated in Scotland and is played on courses with 18 holes, each with a designated par score.

3) Banks provide various financial products, including savings accounts, checking accounts, credit cards, mortgages, and investment services.

4) The smallest unit of time is known as a zeptosecond, which is equal to one trillionth of one billionth of a second.