Fritz Mauthner was an Austrian philosopher and author of novels, satires, reviews and journalistic works. He was an exponent of philosophical scepticism derived from a critique of human knowledge and of philosophy of language.

The Berliner Tageblatt or BT was a German language newspaper published in Berlin from 1872 to 1939. Along with the Frankfurter Zeitung, it became one of the most important liberal German newspapers of its time.