PastlasHistorical atlas

Century · 1901 – 2000

The world in the 20th century

From 1901 to 2000 the atlas holds 1,105 states standing at some time, 674 of them founded in it - Turkey and Russia the best known - and 841 ending in it. 4,209 wars, risings, treaties, discoveries and other events began - World War II, World War I and Cold War the best known of the events; 6,603 people were born.

A century here is counted as Wikidata counts it, 1901 to 2000, and holds every row that began in it, however coarsely dated.

What began in the 20th century

By decade first - wars and battles in red, risings, regime changes and massacres beside them, everything else in grey - then by kind, the best known first.

1901: 194 began — 40 wars and battles, 41 risings, regime changes and massacres, 113 other19011911: 726 began — 468 wars and battles, 104 risings, regime changes and massacres, 154 other19111921: 241 began — 43 wars and battles, 86 risings, regime changes and massacres, 112 other19211931: 431 began — 239 wars and battles, 107 risings, regime changes and massacres, 85 other19311941: 1015 began — 751 wars and battles, 169 risings, regime changes and massacres, 95 other19411951: 187 began — 42 wars and battles, 69 risings, regime changes and massacres, 76 other19511961: 345 began — 95 wars and battles, 176 risings, regime changes and massacres, 74 other19611971: 334 began — 103 wars and battles, 133 risings, regime changes and massacres, 98 other19711981: 311 began — 98 wars and battles, 132 risings, regime changes and massacres, 81 other19811991: 425 began — 141 wars and battles, 148 risings, regime changes and massacres, 136 other1991

Wars and battles 2,020

and 2,012 more in the atlas.

Regime change 250

and 242 more in the atlas.

Unrest and atrocity 915

and 907 more in the atlas.

Famine and plague 26

and 18 more in the atlas.

Natural disasters 132

and 124 more in the atlas.

Treaties 414

and 406 more in the atlas.

Works and ideas 452

and 444 more in the atlas.

States founded and fallen

Founded 674

and 660 more in the atlas.

Ended 841

and 827 more in the atlas.

Born in the 20th century

The best known first, by how many Wikipedias write about them.

and 6,579 more in the atlas.

States of the 20th century

Every state that stood at some time in the 20th century, by region, the best known first.

Europe: 329 statesEurope329Middle East and North Africa: 169 statesMiddle East and North Africa169Sub-Saharan Africa: 124 statesSub-Saharan Africa124South Asia: 207 statesSouth Asia207East and Southeast Asia: 166 statesEast and Southeast Asia166Americas and Oceania: 81 statesAmericas and Oceania81Location unknown: 29 statesLocation unknown29

Europe329 states

and 317 more; every state of Europe.

Middle East and North Africa169 states

and 157 more; every state of Middle East and North Africa.

Sub-Saharan Africa124 states

and 112 more; every state of Sub-Saharan Africa.

South Asia207 states

and 195 more; every state of South Asia.

East and Southeast Asia166 states

and 154 more; every state of East and Southeast Asia.

Americas and Oceania81 states

and 69 more; every state of Americas and Oceania.

Location unknown29 states

and 17 more; every state of Location unknown.

Its decades and years

The decades and years with a page of their own.

Open in the atlas

  • On the timeline, 1900 – 2000: every state, war and life of the 20th century, region by region.
  • On the map in 1950: 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.