What happened to flags on 19 May
4 flags in the atlas carry this date. The sentence under each one is where that is written down, in its own article.
- Cuba 1850
On May 19, 1850, Cuban rebels took the coastal town of Cárdenas, and hoisted the lone-star flag for the first time.
From Flag of Cuba on Wikipedia, as it read on 2026-08-26
- Azerbaijan 1921
Soviet Azerbaijan's first official flag was adopted on 19 May 1921, in its first constitution under Article 104.
From Flag of Azerbaijan on Wikipedia, as it read on 2026-08-29
- Vietnam 1941
The flag was displayed at a conference on 19 May 1941, at which the Viet Minh was founded.
From Flag of Vietnam on Wikipedia, as it read on 2026-08-29
- Malaysia 1950
The final version of the Malayan flag was approved by King George VI on 19 May 1950 and was first raised in front of the Sultan of Selangor's residence on 26 May 1950.
From Flag of Malaysia 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.