753 BCE
founding of Rome
Event · Europe
On this day
21 April
337 events in the atlas are dated to 21 April, from 899 BCE to 2026. The best known come first; below them is every one, age by age, the most significant first.
- 337 events
- 899 BCE – 2026 CE
The best known
From every age and part of the world1782
Founding of Bangkok
Founding · Southeast Asia
1836
Battle of San Jacinto
Battle · North America
1967
Greek junta
Event · Europe
1999
Second Liberian Civil War
War · Sub-Saharan Africa · 1999 – 2003
2019
2019 Sri Lanka bombings
Attack · South Asia
Antiquity
to 500 CE · 6 eventsThe Middle Ages
501 – 1500 CE · 7 eventsEarly modern times
1501 – 1800 · 27 events- 1796Battle of MondovìBattle · Europe
- 1782Founding of BangkokFounding · Southeast Asia
- 1757Battle of ReichenbergBattle · Europe
- 15851585 papal conclaveElection · Europe
- 1526Fall of Delhi SultanateCollapse · South Asia
- 16571657 Sichuan earthquakeNatural disaster · East Asia
- 1503Battle of SeminaraBattle · Europe
- 1676Attack on SudburyBattle · North America
- 16591659 Aidu earthquakeNatural disaster · East Asia
- 1797Founding of La CruzFounding · Mesoamerica and the Caribbean
The 19th century
1801 – 1900 · 36 events- 1836Battle of San JacintoBattle · North America
- 1802Wahhabi sack of KarbalaAttack · Middle East
- 1809Battle of LandshutBattle · Europe
- 1855Lager Beer RiotProtest · North America
- 1824Founding of Fort GibsonFounding · North America
- 1822Battle of RiobambaBattle · South America
- 1853Founding of Villa DoloresFounding · South America
- 1825Founding of BridgewaterFounding · North America
- 1900Construction of Akayu StationConstruction · East Asia
- 1894Founding of Basel Historical MuseumFounding · Europe
The 20th century
1901 – 2000 · 145 events- 1967Greek juntaEvent · Europe
- 1999Second Liberian Civil WarWar · Sub-Saharan Africa · 1999 – 2003
- 1961Algiers putsch of 1961Political · North Africa
- 19671967 Greek coup d'étatPolitical · Europe
- 1915Second Battle of YpresBattle · Europe
- 1983one pound coinEvent · Europe
- 19351935 Hsinchu-Taichung earthquakeNatural disaster · East Asia
- 1948Battle of HaifaBattle · Middle East
- 1920Treaty of WarsawTreaty · Europe
- 1945Battle of BautzenBattle · Europe
The 21st century
since 2001 · 116 events- 20022002 French presidential electionElection · Europe
- 20192019 Sri Lanka bombingsAttack · South Asia
- 20192019–present Sri Lankan economic crisisEvent · South Asia
- 2010Kharkiv PactTreaty · Europe
- 20192019 North Macedonian presidential electionElection · Europe
- 2018SL3Event · North America
- 2004Expedition 9Exploration
- 2011Dupont de Ligonnès murders and disappearanceEvent · Europe
- 20172017 Camp Shaheen attackNatural disaster · South Asia
- 20122012–2013 escalation of the Syrian civil warWar · Middle East · 2012 – 2013
About the dates
Each event is listed under the date its sources give, as its page shows it. Before 1582, and in some countries later (Britain until 1752, Russia until 1918), that is a date of the Julian calendar, as on Wikipedia’s pages for each day.