What happened to flags on 25 August
One flag in the atlas carries this date. The sentence under it is where that is written down, in its own article.
- South Sudan 2023
To address the discrepancies, on 25 August 2023, the Media Authority of South Sudan released an advisory to advertisement and printing companies identifying the correct version of the flag as having a light blue triangle and upright star.
From Flag of South Sudan on Wikipedia, as it read on 2026-08-26
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.