Karl Heinrich Leopold Deschner was a German researcher and writer who achieved public attention in Europe for his trenchant and fiercely critical treatment of Christianity in general and the Catholic Church in particular, as expressed in several articles and books, culminating in his 10 volume Christianity's Criminal History.
Kārlis Baumanis, better known as Baumaņu Kārlis, was an ethnic Latvian composer in the Russian Empire. He is the author of the lyrics and music of Dievs, svētī Latviju! , the national anthem of Latvia.
Kārlis Skalbe was a Latvian writer, poet, and activist. He is best known for his 72 fairy tales which are really written for adults. He has been called the 'King of Fairytales', and his words, Tēvzemei un Brīvībai, are inscribed on the Monument of Freedom in Riga.
Karl-Otto Apel was a German philosopher and Professor Emeritus at the University of Frankfurt am Main. He specialized on the philosophy of language and was thus considered a communication theorist. He developed a distinctive philosophical approach which he called "transcendental pragmatics."
Karol Józef Teofil Estreicher was a Polish bibliographer and librarian who was a founder of the Polish Academy of Learning. While he is known as the "father of Polish bibliography", he is also considered the founder of the bibliographical method in literary research.
His "monumental work", Bibliografia Polska is called the "most outstanding bibliography of Polish books, and probably one of the most famous bibliographies in the world".
Karol Irzykowski was a Polish writer, literary critic, film theoretician, and chess player. Between 1933–1939 in the Second Polish Republic he was a member of the prestigious Polish Academy of Literature founded by the decree of the Council of Ministers.
Karol Kuryluk was a Polish journalist, editor, activist, politician and diplomat. In 2002, he was honored by Yad Vashem for saving Jews in the Holocaust.
