What happened to flags on 6 June
2 flags in the atlas carry this date. The sentence under each one is where that is written down, in its own article.
- Sweden 1815
On 6 June 1815, a common military ensign was introduced for the two united kingdoms of Sweden and Norway.
From Flag of Sweden on Wikipedia, as it read on 2026-08-29
- Kazakhstan 1918
This variant of flag depicts a yellow yurt on a white background, this flag is mentioned in the "Will of the People" newspaper as approved on 6 June 1918.
From Flag of Kazakhstan 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.