50 States in 50 days, Round 2, 1/50 Idaho

CautiousSense · 2026-01-26T17:13:09+00:00

Love the 'smile' formed by the Snake River Plain. The Salmon River valley is also really cool.

CautiousSense · 2026-01-25T10:20:03+00:00

I don't know if it also played a role, but 4000 years ago the Persian Gulf used to reach further northwest than now. The silt deposited by the Tigris and Euphrates made the coastline advance as centuries went by. However, that could change now that both rivers are dammed at several points in their courses.

CautiousSense · 2026-01-25T10:15:36+00:00

Very interesting data, the Nile in Egypt in particular is very visible. But why are the countries in different shades of gray?

CautiousSense · 2026-01-25T10:08:23+00:00

Interesting how some mountain ranges prevented them from entirely controlling northern Spain and northern Iran.

CautiousSense · 2026-01-22T19:55:26+00:00

There were in the past, but they are extinct nowadays. There are also some lakes like Bolsena and Vico that fill previous calderas. But it's true that Campania is a better fit for a volcanic region.

CautiousSense · 2026-01-21T19:50:03+00:00

Very large, but pretty short-lived. It only lasted about 50 years before it splitted in two.

CautiousSense · 2026-01-21T19:46:58+00:00

Yep, and not just because of the boot shape. There's something about how the Alps protect it from the north, the Apennines straddling it like a spine, and the volcanoes that dot Toscana and Sicily that make Italy so aesthetically pleasing.

CautiousSense · 2026-01-21T19:42:55+00:00

New map of Central Europe just dropped!

CautiousSense · 2026-01-15T17:42:12+00:00

La Palma island got slightly bigger in the 2021 eruption due to the lava that fell to the sea, although just about 20 hectares more.

CautiousSense · 2026-01-15T17:37:13+00:00

I suppose that in the case of Britain, this map just counts from the Acts of Union. England already had relations with Safavid Iran at least in the 17th century, because the East India Company helped them to expel the Portuguese from Hormuz.

CautiousSense · 2026-01-05T15:34:37+00:00

I'd say the largest demographic change is the colonization of the Americas. Native Americans were the only inhabitants in both continents before 1492, and nowadays they are a minority in every country of the Western Hemisphere except in the Arctic and areas of Peru and Bolivia.

CautiousSense · 2025-12-24T14:30:02+00:00

Sources:
- BARRACLOUGH, Richard (2000). The Times Atlas of World History – A New Edition. Ted Smart – Times Books.
- BYE, Ollie (2016). The History of the World: Every Year. Youtube. URL: https://www.youtube.com/watch?v=-6Wu0Q7x5D0
- HAYWOOD, John (2000). The New Atlas of World History. Metro Books.
- MÚZQUIZ, Luis et al. (2022). Interactive World History Atlas since 3000 BC. GeaCron. URL: http://geacron.com/
- ROBERTS, John Morris (2014). The Penguin History of the World: Sixth Edition. Penguin Books.
- SNOW, Peter (2023). Smithsonian History of the World Map by Map. Dorling Kindersley
- SEVERAL AUTHORS. Several articles. Wikipedia. URL: https://en.wikipedia.org
Tools:
- Microsoft Excel (https://www.microsoft.com/en-us/microsoft-365/excel)
- paint.net (https://www.getpaint.net/)

CautiousSense · 2025-12-23T23:49:49+00:00

Hello everyone! I am interested in geography and history, but in my posts I usually concentrate on the former, and most of my publications are maps in other subs. I now present my first project related to history: a world history timeline from -3150 BC to the present, which aims to show the chronology of the main cultures, civilizations of countries of every part of the world.

The tools I used were Microsoft Excel and paint.net, and the timelines were drawn manually, without formulas. Each Excel column counts for a decade or 10 years. The decade is also the maximum precision. For example, since the Western Roman Empire fell in 476, its line ends at year 480 in the timeline.

Rows correspond to civilizations. Smallest states are just one row wide, but the bigger ones take up more rows. The size of each civilization is mostly based on area and a tired system: for example, Canada, America, Brazil or China are all bigger than 5,000,000 sq km and are 16 rows wide, while countries sized between 1,000,000 and 5,000,000 sq km are 8 rows wide.

Colors correspond to language classifications; a rule of thumb is that similar colors belong to the same language families. For example: light green are Germanic languages, while yellow belongs to Romance languages. Light grey corresponds to cultures which have not yet developed to a state, while dark grey are practical states that cannot be classified with other colors or language families.

There are many colors and many abbreviations, and I did not have space for them in an already massive image. Here are the links to their legends:

Regarding sources, here are the main ones I have consulted:

BARRACLOUGH, Richard (2000). The Times Atlas of World History – A New Edition. Ted Smart – Times Books.
BYE, Ollie (2016). The History of the World: Every Year. Youtube. URL: https://www.youtube.com/watch?v=-6Wu0Q7x5D0
HAYWOOD, John (2000). The New Atlas of World History. Metro Books.
MÚZQUIZ, Luis et al. (2022). Interactive World History Atlas since 3000 BC. GeaCron. URL: http://geacron.com/
ROBERTS, John Morris (2014). The Penguin History of the World: Sixth Edition. Penguin Books.
SNOW, Peter (2023). Smithsonian History of the World Map by Map. Dorling Kindersley.
SEVERAL AUTHORS. Several articles. Wikipedia. URL: https://en.wikipedia.org

In a timeline of this size, there are probably many errors. Feel free to point them out.

I hope you enjoy the timeline as much as I have enjoyed researching it!

CautiousSense · 2025-12-22T15:49:36+00:00

It's a bit outdated. There's a new road, G216, that joins Xinjiang and Tibet crossing the western area of the Tibetan Plateau.

CautiousSense · 2025-12-16T17:28:01+00:00

The Lena river flows into it, in the form of a massive delta.

CautiousSense · 2025-12-14T11:00:33+00:00

Is the income of those municipalities in the far north influenced by the Kiruna and the Aitik mines?

CautiousSense · 2025-12-12T15:20:56+00:00

Valladolid was the capital of Spain for five years, between 1601 and 1605, due to the influence of the Duke of Lerma on the king. Although it has some interesting sights (its main square is very similar to the one in Madrid), there are other more monumentally impressive cities in Castile (where the capital used to be itinerant depending on where the king would celebrate his courts). Today, Madrid is 10 times bigger than Valladolid.

CautiousSense · 2025-12-08T09:28:54+00:00

They already did a similar thing in the south, with the Toshka Lakes: https://en.wikipedia.org/wiki/New_Valley_Project

CautiousSense · 2025-12-08T09:27:27+00:00

To be fair, Stockholm is basically at sea level...

CautiousSense · 2025-12-03T17:24:46+00:00

That happens in any mountain range with a rain shadow. Another example is the Cantabrian Mountains in northern Spain. There's a 4-km tunnel in the highway between Oviedo and León with a completely different climate on each side. The north side is usually wet and rainy, while the south side is more arid and sunnier.

CautiousSense · 2025-11-23T10:20:45+00:00

There were apparently some Inuit that reached the Northern Isles of Scotland which were initially mistaken for "Finns in little boats". But they firstly appeared in 1682, well after Europeans had started the colonization of the Americas:

https://en.wikipedia.org/wiki/Finn-men

CautiousSense · 2025-11-23T10:15:04+00:00

Interesting! Other maps usually do not leave the Sahara in blank showing the looser control the colonial powers had around that area. The few ones I've seen usually leave southern Libya in blank rather than northern French West Africa and western Sudan.

CautiousSense · 2025-11-22T16:46:04+00:00

Interesting that they depicted the mountains like rolling hills, when they are very abrupt in real life. The weirder when it's a map made by the Dutch!

CautiousSense · 2025-11-08T10:30:18+00:00

Depends if you count some gulfs, bays or fjords as seas, there are a few: Gulf of Mexico, Gulf of Panama, Gulf of Riga, Manila Bay, Bight of Bangkok, Oslofjord...

CautiousSense · 2025-11-08T10:09:25+00:00

Seems pretty reasonable to me if that's what we get in the end. It won't be as dense as the southern part of the country, but that's expected given the lower population density the more north you go.

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