Template:OpenHistoricalMap/On this day/05/21
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- 1840
- British sovereignty is declared over all of New Zealand, making it a part of the colony of New South Wales.
- 1861
- North Carolina is admitted into the Confederate States of America, a day after seceding from the United States.
- 1921
- The entirety of Greenland is declared to be under Danish rule.
- 2001
- Seoul Museum of History opens in South Korea.
- 2006
- SM Mall of Asia opens in Pasay, Philippines.
This is a selection of establishments and disestablishments on May 21, based on OpenHistoricalMap data, that automatically appears on the OpenHistoricalMap page on May 21 of each year. This list highlights important changes in the world, as well as more mundane events that demonstrate the project's ambitious tendency toward micromapping history.
Contributing
We appreciate your help in curating these events from OpenHistoricalMap data. Items should be based on fully qualified start_date=* and end_date=* tags, plus any other metadata tagged on features in OpenHistoricalMap. To the extent possible, the list should feature a wide range of years and include events from different continents.