Why is Spain so divided?

What in earth happened in Spain's history for it to have such strong divisions and completely different cultures in each of its "corners" ?

also unlike britain wich has 4 clearly divided cultures, spain decided to divided each of its regions in subregions as in to somewhat represent all posssible minorities and historical regions of spain during completely different times, at the same time.
this is what spain looked like if the regions were the components of the spanish shield in the flag.
much easier to manage and understand

>What in earth happened in What in earth happened in Italy's history
>What in earth happened in Germany's history
>What in earth happened in Yugoslavia's history
>What in earth happened in UK's history

what in earth do any of those things have to do with spain? what to heck

All very regional countries

Most of those regions used to be full fledgling kingdoms in the Middle Ages and the during the reconquista, Castille and Aragon happened to be the ones who blobbed the most. Even after the marriage union, the new kingdom of "Spain" didn't have complete control over it's lands, with those regions acting more like vassal than another part of a whole. Portugal itself was supposed to be a part of Spain if it wasn't for the efforts of strong man kings like Alfonso.

Why is the iberian peninsula so aesthetic?

I guess US has fifty "completely different cultures" too? Those division in OP's map are rather recent and arbitrary; e.g., Madrid, Castile-Leon, Castile-La Mancha, Cantabria and La Rioja should have been one single autonomous community.

Mot autonomies are a meme and were made up 40 years ago
>That division
You have to go back sudaca

>full fledgling kingdoms in the Middle Ages
Most comunidades were made up 40 years ago.