Leopold von Ranke, German historian, author, and academic (died 1886)

Leopold von Ranke was a German historian and a founder of modern source-based history. He was able to implement the seminar teaching method in his classroom and focused on archival research and the analysis of historical documents. Building on the methods of the Göttingen school of history, he was the first to establish a historical seminar. Ranke set the standards for much of later historical writing, introducing such ideas as reliance on primary sources (empiricism), an emphasis on narrative history and especially international politics (Außenpolitik). He was ennobled in 1865, with the addition of a "von" to his name.

December 21 is the 355th day of the year in the Gregorian calendar; 10 days remain until the end of the year.