Tomas Pueyo Profile picture
Dec 7, 2021 14 tweets 4 min read Read on X
Why Europeans colonized America before Africa, in two maps and one story:

Map 1:
Northern Africa, bordering the Mediterranean, has been part of the Eurasian cultures for thousands of years.

South of that, it didn't get conquered until the 19th century, while America got conquered 3 centuries earlier despite being farther. Why?
For centuries, there was the Sahara barrier. The distance to cross was just too big. Impossible by foot, and only possible by sea through the Red Sea in the East, on the path to India, because of inhabitable stops on both sides
I explain in this article why going beyond ports was really hard. Basically: no Suez canal, hard to build/transport fleets, far from home, few local stops... Trade possible, invasion hard

So this is why, for centuries, Subsaharan Africa was out of reach.

unchartedterritories.tomaspueyo.com/p/the-splinter…
But why was it out of reach once ships could sail all the way to America? Couldn't armies just sail past the Sahara?

They could. And then they'd die.
Because of this guy.
Map 2:
As Europe grew and its ships improved, they immediately started sailing down the western coast.

But people and cattle putting a foot in Africa dropped dead immediately when they caught Malaria
So for centuries, Europeans had no presence in Africa except for a few trading posts on the coast. This is from 1850
What changed?
Quinine.
Now Europeans survived in Africa.
What were failed invasions before could now start.
And this is the change from 1880 to 1914, just before WWI. This period is called the Scramble for Africa. Just about 30 years.
So these two maps explain why Europeans didn't colonize Africa until the end of the 19th century: the Sahara barrier and the Malaria barrier.

Obviously, malaria breeds where there's heavy rainfall, so the quick transition between Sahara and Malaria areas was crucial.
Here's another thread on why Africa is the way it is
And one on why the Caribbean is the way it is
And one on why China is the way it is

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More from @tomaspueyo

Apr 28
Over 80% of Canada's population lives in these 3 areas.
Why these 3?
Why so disconnected?
What are the consequences of that?
Here's why: 🧵 Image
ST LAWRENCE VALLEY & GREAT LAKES
About 55% of Canadians live here, on the riverbanks of the St Lawrence River and the Great Lakes. Why?

And as soon as you go a bit farther north of the St Lawrence, population disappears. Why? Image
1. History: This is where Europeans came from, and the place they settled first

Also, the St Lawrence river is naturally navigable until Montréal by seafaring ships—and up till the Great Lakes since the 1800s

That meant direct trade with Europe & the world➡️wealth Image
Read 18 tweets
Apr 25
Trump claims Canada should become the 51st US state
How much truth is there to this claim?
These maps tell us:
You probably know that 50% of Canadians live below this line

80% of Canadians live within 100 miles of the border with the US! Image
You might also know that 70% of Canadians live in these 3 colored areas

These 3 areas are completely disconnected from each other Image
Read 25 tweets
Apr 13
10 surprising things I've learned about Korea as I research it:

1. You might have seen the map of day & night lights in North vs South Korea, but have you compared it with population density?
2. Seoul is just monstrous. Its metro area covers 12% of South Korea🇰🇷's surface but 50% of its population Image
3. North Korea is a dictatorship, but South Korea 🇰🇷 is no perfect democracy. All but ONE of🇰🇷's heads of state have had a troubled life... Image
Read 12 tweets
Apr 11
I think the craziness of North Korea is most apparent in its architecture. 7 examples:

1. The Science & Technology complex has the shape of an atom from above Image
Image
2. North Koreans like making their buildings' form represent their function. This is the entrance of the Zoo in the capital, Pyongyang: Image
3. The tallest building in the country is empty!
The Ryugyong Hotel was never finished. This Blade-Runner-style building has been empty for decades. The gov put LEDs on one facade, to use it... for propagandaImage
Image
Read 8 tweets
Feb 24
The stupidest German policy of the last decade: closing its nuclear power plants

These are Germany's sources of electricity vs what they could have been if they had kept nuclear open:

• This has destroyed Germany's industry
• The new gov can reverse this
🧵
Germany's economy is in tatters. It's one of the slowest-growing rich economies. It has been in recession in 2023 and 2024! Image
One of the main reasons is its industrial production: It's shrunk compared to similar countries Image
Read 13 tweets
Feb 19
This Sunday are Germany's elections
These are the best maps to understand the country:
Why is it so rich?
What makes it special?
What lies in its future?

1. We can still tell the East/West divide, 35 years after the reunification. These are Germany's phantom borders
2. Before WW2, East Germany had more:
• Working class ppl
• Vote left
• Women working
• Births out of wedlock
• Protestantism Image
Image
Image
Image
3. The main reason is because this region industrialized early. One of the reasons of that industrialization is because of the Bohemian Mountains and their coal and iron Image
Read 24 tweets

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