I'm wondering if there is a way to pass from a Wikipedia page in English to the same Wikipedia page in another language (e.g. Italian). I don't want to translate the English page in Italian, I want to see if there is the same page in Italian.
Yes. Wikipedia explains how they handle languages and how to switch between languages on this page List of Wikipedias.
Each Wikipedia has a language code, which is used as a subdomain below wikipedia.org. Interlanguage links are sorted by that code as a prefix. The codes represent the language codes defined by ISO 639-1 and ISO 639-3, and the decision of which language code to use is usually determined by the IETF language tag policy
Change the 2 letter language
il) to change to a different site language.
Example URL Variations
Note that there are often variations in the URL's from site to site, in addition to the language prefix.
Sample URL Variation 1
Stack Overflow (The Website)
Sample URL Variation 2
Stack Overflow (The Definition)
ACCURATELY DETERMINE ALTERNATE LANGUAGE URLS
What follows describes different approaches for mobile vs. desktop versions of Wikipedia pages. Wikipedia will, by default, try to serve you the appropriate version of the page based on the platform they detect. There is, however, no reason you couldn't view desktop versions of pages on mobile devices, and vice versa. The mobile vs. desktop distinction refers to the coding of the web page as opposed to the actual platform (device) used to access the page.
If you add
#/languages to the end of a mobile t Wikipedia URL you will get links to the page on other language sites.
t Mobile URLs have
m modifier in the path: https://en.
The method described for mobile versions doesn't work for the desktop version of those pages. For desktop versions of the page, a list of commonly selected languages exists in the left column of the page which link directly to the alternate language pages, in addition to a dynamic menu labeled
## More which lists any languages remaining that are hidden (## = addt'l langs hidden).
There is a button that shows you the list of available languages. On desktop, it's located to the right of the title:
On mobile, it is underneath the title (and at larger widths will say "Language" next to it):
You can type the English name in the search box to find the language, even if it doesn't match the translated name (e.g. "Japanese" to get to "日本語").