PastlasHistorical atlas

Year

The world in 1821

In 1821 the atlas holds 536 states standing across 6 regions. 25 things began that year - Mexico, Costa Rica and Honduras among them - and 7 ended; 41 people were born and 24 died.

Only what Wikidata dates to the year is counted here; a thing dated to its decade is on the 1820s page, and to its century on the 19th century.

What began in 1821

By kind, the best known first; a war or a state is listed in the year it began.

States 8

Wars and battles 10

Unrest and atrocity 3

Treaties 3

Works and ideas 1

What ended in 1821

States that fell or were replaced, and wars and other things that ran past the year they began.

States 6

Wars and battles 1

Born and died

By how many Wikipedias write about them.

Born in 1821 41

and 25 more in the atlas.

Died in 1821 24

and 8 more in the atlas.

Standing in 1821

The states the atlas holds as standing that year, by region, the best known first, with who held the highest office where the record dates it.

Europe: 131 statesEurope131Middle East and North Africa: 68 statesMiddle East and North Africa68Sub-Saharan Africa: 44 statesSub-Saharan Africa44South Asia: 165 statesSouth Asia165East and Southeast Asia: 70 statesEast and Southeast Asia70Americas and Oceania: 31 statesAmericas and Oceania31Location unknown: 27 statesLocation unknown27

Europe131 states

and 121 more; every state of Europe.

Middle East and North Africa68 states

and 58 more; every state of Middle East and North Africa.

Sub-Saharan Africa44 states

and 34 more; every state of Sub-Saharan Africa.

South Asia165 states

and 155 more; every state of South Asia.

East and Southeast Asia70 states

and 60 more; every state of East and Southeast Asia.

Americas and Oceania31 states

and 21 more; every state of Americas and Oceania.

Location unknown27 states

and 17 more; every state of Location unknown.

Open in the atlas

  • On the timeline, 1796 – 1846: every state, war and life of 1821 and the years either side, region by region.
  • On the map in 1821: the borders of the year, its cities under their names of the year, and what happened where.

Wikidata (CC0) · data built 2026-10-07 · Pastlas v2.13.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.