A way to search just a specific-language Wikipedia (mainly English Wikipedia)

[prototyperspective]

• Quality and coverage of Wikipedias differs substantially. It would be very useful if one could select which Wikipedia it should get the info from – usually this would be used to limit info to be retrieved from English Wikipedia, which generally is the most reliable, best-quality, and most-up-to-date.
• One may want to locate a relevant article/section/paragraph/sentence/info specifically in a specific language Wikipedia and this is currently not so possible now that so many Wikipedias are included here.
• There could also be further reasons for why this could be useful beyond such differences.