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

2) The national flower of Japan is the cherry blossom, which holds great cultural significance and is celebrated during the annual cherry blossom festivals.

3) The speed of light is approximately 299,792,458 meters per second.

4) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."