Which non-Indo-European language is the most widely spoken in Europe?
Hungarian
Finnish
Basque
Gaelic
Linguistic connections between Hungarian and other Uralic languages were noticed in the 1670s, and the family itself was established in 1717. Because of strong anti-Turkish sentiment, the classification of Hungarian as a  Turkic language continued to be a matter of impassioned political controversy through the 18th and into the 19th centuries.
reach: rather globalEuropeHungarylanguages
Answers by country
Hungarian
Finnish
Basque
Gaelic
answers
 Estonia
Estonia10
 Republic of Ireland
Republic of Ireland35
 Austria
Austria51
 Spain
Spain18
 Switzerland
Switzerland28
 Hungary
Hungary21
 Australia
Australia32
 the Netherlands
the Netherlands18
 Germany
Germany313
 the United Kingdom
the United Kingdom132
 Pakistan
Pakistan10
 the United States
the United States213
 France
France13
 Poland
Poland10273
 Italy
Italy12
 Canada
Canada19
 India
India43
 Greece
Greece12