Read this: Thuringia's leading research centre is Jena, followed by Ilmenau. Both focus on technology, in particular life sciences and optics at Jena and information technology at Ilmenau. Erfurt is a centre of Germany's horticultural research, whereas Weimar and Gotha with their various archives and libraries are centres of historic and cultural research. Most of the research in Thuringia is publicly funded basic research due to the lack of large companies able to invest significant amounts in applied research, with the notable exception of the optics sector at Jena.

Which universities are known for their historic and cultural aspects?
What is the answer? (If it cannot be answered, return "unanswerable")
Weimar and Gotha