# World map in 1820

Source page: https://geographichistory.app/map/1820/

215 states share the map in 1820. The largest by mapped area are Russia, Qing and United Kingdom.

Russia is the largest state on the map in 1820, a position it has held since 1633 (before that: Spanish Empire). It stays in first place until 1917, when United Kingdom takes over. The five largest states hold 52% of all land with a recorded ruler. 24% of the land on the map has no recorded state. The number of states is about the same as in 1815: 215 against 220.

## Largest states in 1820

| State | Mapped area (km²) | Provinces |
|---|---|---|
| Russia | 17,195,000 | 232 |
| Qing | 11,741,000 | 183 |
| United Kingdom | 11,322,000 | 207 |
| Kingdom of Portugal | 7,605,000 | 99 |
| Ottoman Empire | 4,133,000 | 133 |
| Mexico | 3,254,000 | 91 |
| Spanish Empire | 3,083,000 | 97 |
| Gran Colombia | 3,040,000 | 45 |
| United States of America | 3,002,000 | 123 |
| Argentina | 2,125,000 | 29 |

## Changes since 1815

- On the map, Gran Colombia takes the place of United provinces of New Granada (about 780 thousand km²).
- On the map, Gran Colombia takes the place of Venezuela (about 610 thousand km²).
- On the map, Kingdom of the Two Sicilies takes the place of Kingdom of Naples (about 76 thousand km²).
Other changes: 122 provinces changed hands.
- Argentina gained about 2.1 million km², mostly from Spanish Empire.
- Gran Colombia gained about 1.6 million km², mostly from Spanish Empire and unclaimed land.
- Ottoman Empire gained about 760 thousand km², mostly from Diriyah.
- United Kingdom gained about 560 thousand km², mostly from Marathas and Nagpur.

## Battles 1820 - 1829

- 1821: Erzurum (Turkish-Persian War), won by Persia
- 1821: Rieti (Italian Revolt Against Austria), won by Austria
- 1822: Devernaki (Greek War of Independence), won by Greek Rebels
- 1823: Takoon (Cape Frontier Wars), won by Cape Colony
- 1823: Trocadera (Franco-Spanish War), won by France
- 1824: Rangoon (1st British-Burmese War), won by United Kingdom
- 1825: Bharatpur (British-Maratha Wars), won by Untied Kingdom
- 1826: Yelizavetpol (Russo-Persian Wars), won by Russia
- 1827: Abbasabad (Russo-Persian Wars), won by Russia
- 1827: Navarino (Greek War of Independence), won by United Kingdom, Russia, France
- 1828: Silistria (Russo-Turkish Wars), won by Russia
- 1828: Akhaltsikhe (Russo-Turkish Wars), won by Russia