what does it say about itself

It occurred to me to wonder in what year Wikipedia was started. So what do I do? I look it up on Wikipedia!

2001, by the way.

This chart is a reminder that Wikipedia is not only an English-language resource:
Article count of European Wikipedias by language family

There have only been a few times I recall seeing or reading articles in a non-English language Wikipedia. I wonder if you look up something on one language version of the site, if the results ever include articles in the other language versions? Or are they completely separate. Are there completely different articles in different languages on the same subject? That would be interesting to see, sometimes. They ought to link to each other.
But I only wonder, not wanting to take more time of my day now looking up about that.