1) The first modern Olympic marathon race was held at the 1896 Olympics in Athens and has since become one of the most iconic and challenging events in athletics.

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

3) The first commercially successful video game was "Pong," released in 1972 by Atari.

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