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Similar world flags

John D. Cook used Mathematica’s CountryData database to find similar world flag designs and I’m shocked at how many are practically identical bar slightly darker/lighter shades of colour:

A week ago I posted some pairs of similar flags on Twitter, and later I found that Mathematica’s CountryData database contains flag descriptions. So I thought I’d use the flag descriptions to see which flags Mathematica things are similar.

I had Mathematica output a list of countries and flag descriptions, then searched the output for the word “similar.” I then made the following groupings based on the output [1].

While some of countries that share a similar flag are close in proximity and culture, Indonesia and Monaco isn’t as similar and not very close together, geographically:

Indonesian flag - a red rectangle on the top half and a white rectangle on the bottom half but the overall flag shape is more elongated than the Monaco flag
Indonesian flag
Monaco - a red rectangle on the top half and a white rectangle on the bottom half but the overall flag shape is more of a square compared to Indonesia's
Monégasque flag

Geography related: How many countries can you name in Europe? (QUIZ)

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