Shigetaka Kurita invented Emoji in 1999. There are about 3304 emojis as of March 2020.

International Chess Day is celebrated annually on 20th July, since 1966. The idea to celebrate this day proposed was by UNESCO.

Playing time of the full version of the national anthem is approximately 52 seconds. A short version consisting of first and last lines of the stanza (playing time approximately 20 seconds).

The United Nations has designated 1974 as World Population Year, and has called upon all governments and peoples to participate in its observance.