Friedrich Schiller 
History of the Thirty Years‘ War [PDF ebook] 
Volume I

Tensions between Catholic and Protestant factions of the Roman Empire erupted into what became know as the Thirty Years‘ War in 1618. German poet, historian, philosopher and dramatist Friedrich Schiller writes about the effect this war had on the territories in which it was fought, most of which became modern-day Germany. Schiller wrote this history in part as a consequence of his interest in the freedom of man.