Ethnographic map of Austria-Hungary (census 1880). See also the <a href="//commons.wikimedia.org/wiki/File:Austria-Hungary_(ethnic).JPG" title="File:Austria-Hungary (ethnic).JPG">English version</a>.
<bdi><a href="https://en.wikipedia.org/wiki/en:Richard_Andree" class="extiw" title="w:en:Richard Andree"><span title="German geographer (1835-1912)">Richard Andree</span></a>
</bdi>
1880
Andrees Handatlas, 1880