Reading two Wikis in parallel
can be instructive (for me that is English and Krautish). English tends to give more information but sometimes just babbles along without apparent point or structure.
Even just the number of (language-) versions of a single article can be telling.
An example of a vanity article (including the telltale "can't get over myself" image), which appears to be easier to plug into the English Wiki compared to others, is this. Note there is no version of this in any language other than English, not even in the Latvian language.
And then there are original sources to read, at least someone on the internet said that.