9 September on the map of history

4 events the records the map draws date to 9 September, from 1943 to 1948. Each one opens the map on that very day.

The map on 1948-09-09: The map begins drawing North Korea; the map stops drawing Korea (USSR)
  1. 1943

    New borders for Kingdom of Italy, Kingdom of Yugoslavia

    Border record (CShapes 2.0)

    Open the map on this day →
  2. 1943

    The Salerno landings — the beachhead is nearly driven back into the sea on the fourth day

    War record · World War II · 1943-09-09 – 1943-09-16

    Open the map on this day →
  3. 1944

    The Sofia coup — Bulgaria changes sides and declares war on Germany within the week

    War record · World War II

    Open the map on this day →
  4. 1948

    The map begins drawing North Korea; the map stops drawing Korea (USSR)

    Border record (CShapes 2.0)

    Open the map on this day →

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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).

Every data source IntMap uses →

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