25 May on the map of history
5 events the records the map draws date to 25 May, from 1917 to 1992. Each one opens the map on that very day.

- 1917
The Gotha daylight raids — bombers replace the airships and London is hit in broad daylight
War record · World War I · 1917-05-25 – 1918-05-20
Open the map on this day → - 1918
Karakilisa — the second of the three battles fought for the survival of Armenia in one week
War record · World War I · 1918-05-25 – 1918-05-28
Open the map on this day → - 1944
Luoyang falls in the first phase of Ichi-Go and the Peking–Hankow railway is opened end to end
War record · World War II
Open the map on this day → - 1946
The map begins drawing Transjordan; the map stops drawing Transjordan (UK)
Border record (CShapes 2.0)
Open the map on this day → - 1992
The camps of the Prijedor area
War record · Yugoslav Wars · 1992-05-25 – 1992-08-21
Open the map on this day →
What this page states
A border event is what the border record states about its own outlines, under the names IntMap’s map writes on that day: «the map begins drawing», «stops drawing», «new borders for». It is computed by the map’s own code, comparing the day with the day before.
A name the record does not date is not listed: the map’s table of era names is written in years, so a renaming that falls on another country’s border day is left out.
OpenHistoricalMap, which the map draws from 1689 to 1885, is not included: its dates carry no precision, and most of its first-of-the-month dates are months or years written as days.
The war record covers only the wars IntMap documents day by day (World War I, World War II, Korean War, Vietnam War, Arab–Israeli Wars, Yugoslav Wars).
Sources
CShapes 2.0 (Schvitz et al. 2022, icr.ethz.ch/data/cshapes) · CC BY-NC-SA 4.0
Territory and dates: the documented record, compiled in scripts/wars/. Country outlines: CShapes 2.0 (Schvitz et al. 2022, icr.ethz.ch/data/cshapes).