April 21 in History

21 April in History – 84 years ago

Invasion of Denmark and Norway

Europe 1940: Invasion of Denmark and Norway

For over six months after the invasion of Poland, no major land fighting occurred in the... SEE MORE…

❮ 20 April 21 April 22 April ❯

All Maps on this day

Historical Atlas of Europe 1940: Invasion of Denmark and Norway
Europe 1940
Invasion of Denmark and Norway
For over six months after the invasion of Poland, no major land fighting occurred in the West -...
Historical Atlas of North America 1836: Texas Revolution
North America 1836
Texas Revolution
By the 1830s the Mexican border region of Texas had become dominated by settlers from the...
Historical Atlas of Europe 408: Stilicho vs Constantine III
Europe 408
Stilicho vs Constantine III
In early 408 Stilicho responded to Constantine III’s usurpation by sending a force into Gaul. At...
 

on 21 April 248

Rome’s millennium celebrated*

All Events on 21 April

starts   1967
Far-right military junta in power in Greece
  1960
Brasília inaugurated as capital of Brazil
starts   1914
US occupation of Veracruz
  1907
Brazil-Colombia border defined
starts   1898
US defeats Spain in Spanish-American War
  1898
US blockades Cuba
starts   1877
Sioux and Cheyenne surrender
starts   1872
Third Carlist War
  1836
Texas defeats Mexico at San Jacinto
starts   1809
Napoleon defeats Austrians at Eckmühl
  1809
French defeat Austrians at Landshut
ends   430
Roman bishops restore Catholic influence in Britain*
  335
Roman Goths drive Hasdingi from northern Dacia*
  269
Claudius routs Goths at Naissus*
ends   260
Himyar fights Hadramawt, Saba’, and Aksum*
  248
Rome’s millennium celebrated*
starts   241
Persians overrun Roman Mesopotamia and Osrhoene*
  194
Roman Syria divided into three provinces*
starts   67
Romans under Vespasian retake Galilee*
*Actual date uncertain; set to 21 April for purposes of Omniatlas

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