What happened to flags on 9 July
2 flags in the atlas carry this date. The sentence under each one is where that is written down, in its own article.
- Argentina 1816
The Spanish flag was finally abandoned after the formal declaration of independence on 9 July 1816, being replaced by the blue and white flags created in 1812 by General Manuel Belgrano.
From Flag of Argentina on Wikipedia, as it read on 2026-08-29
- Qatar 1971
The flag was officially adopted on 9 July 1971 and was virtually identical to the 1960s flag, except the height-to-width proportion.
From Flag of Qatar on Wikipedia, as it read on 2026-08-29
How a day gets onto this site
A flag is here because a sentence in its own English Wikipedia article puts it on this date, and that sentence is printed above. Nothing was worked out from a year, and nothing was written for the occasion. Every sentence names the article it came from and the version of that article it was read in, so you can go and check it.
The calendar is still short rather than full. A third of the year has no page here, because a flag only gets a day when a sentence in its article puts something on one, and plenty of articles never do. Nothing is invented to fill the gap.