The history podcast hosted by Dan Carlin that features multi-hour episodes on the Mongols and World War I is Hardcore History.
Carlin launched Hardcore History in 2006, presenting long-form historical narratives in a dramatic, highly personal style. Rather than using a conventional interview format, he usually narrates events himself, connecting military campaigns, political decisions, personalities, and social consequences into extended stories often described as “theater of the mind.”
Its major series include Wrath of the Khans, about the rise and expansion of the Mongol Empire, and Blueprint for Armageddon, a multi-part examination of World War I. Other subjects have included the Punic Wars, the fall of the Roman Republic, the Bronze Age, and the Eastern Front of World War II.
A frequent misconception is that Carlin is a university historian. He studied history at the University of Colorado, Boulder, but is primarily known as a podcaster and former radio and television host. Hardcore History is also distinct from his shorter companion feed, Hardcore History: Addendum, which carries interviews and supplemental material.