1910 Languages of Central Europe (without borders)

‘Reddish hues are Germanic languages, bluish ones are Romance, green Slavic.

The big light pink blob in the center is High German. To the north of it, darker pink, Low German and, further north and darker, Danish. The reddish hue on the border between Danish and Low German, and also in the Netherlands, is Frisian. Continuing counterclockwise you have Dutch, French, Italian; then purple is probably Friulian, which here is counted as a separate language while things like Lombardian are grouped as dialects of Italian.

Next comes Yugoslavian, including Slovenian and Bosnio-Croat-Montenegro-Serbian. Brown is Hungarian, light green is Slovakian, the green almost entirely surrounded by German is Czech, the green entirely surrounded by German is Sorbian, the green with lots of small German enclaves is Polish. The yellowish tone in the northeast is likely Lithuanian’–eukubernetes