Countries of the Americas in 1820 (with Map!)

Name all the countries that have had any territory on the American continent (North and South America) on December 31, 1820
Geographical definition of the Americas, so no Kingdom of Hawaii or Rapa Nui
Not including the different viceroyalties (Perú, New Granada etc.)
One region was claimed by two countries. Typing one of the claimants will turn it green
Sources: 1, 2
Quiz by Gassu
Last updated: September 7, 2018
First submittedAugust 29, 2018
Times taken2,111
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British Empire
Entre Ríos
Gran Colombia
Oregon Country
Portugal, Brazil and the Algarves
Russian Empire
Spanish Empire
United Provinces (Argentina)
United States
Level 61
Aug 29, 2018
Great quiz, thank you! In return:
Level 84
Aug 30, 2018
I'd never heard of Entre Rios, and after reading up on it, I'm not sure it belongs as an independent country. Still, I'm glad it was here so I could learn something.
Level 72
Aug 30, 2018
Yes, it was 'unrecognized', but hey, which parts of America were completely recognized by a majority of the population? I guess not the colonialists.
Level 46
Dec 11, 2018
I think "Federal League" or "League of Free Peoples" would be a more accurate name
Level 64
Jul 20, 2019
I can’t see Sweden on my map
Level 50
Jan 25, 2020
neither can I
Level 67
Jan 30, 2020
I looked around and it seems to be the island of Barbuda
Level 50
Jul 13, 2020
I researched it and it should be Saint Barthélemy
Level 28
Nov 11, 2019
Mexico was an indendent country from Spain
Level 27
Nov 23, 2019
Mexico gained its independence in September 1821. (
Level 59
Sep 30, 2020
"Entre Ríos" region is also called "Mesopotamia" in Brazilian History books, both terms meaning "between rivers" (in Spanish and Greek, respectively). I think this could be consiedered too.

Great quiz!

Level 57
Dec 24, 2020
I thought the one near Uruguay was the Rio De La Plata.
Level 59
Jan 14, 2021
It's another name for Argentina, which works on here. In fact, I tried it first because I wasn't sure if Argentina would be accepted.
Level 59
Jan 14, 2021
I was wondering about Florida, but upon looking it up, the treaty only went into effect in 1821.
Level 38
Mar 25, 2021
Falklands only claimed by Argentina. Should be UK