Hardcore History podcaster Dan Carlin explains how he started the podcast, his process when making episodes and, ultimately, why history is important, while he guesses quotes from his most famous podcasts, 'Blueprint for Armageddon,' 'Wrath of the Khans,' 'Death Throes of the Republic,' and more. His newest series on the story of Alexander the Great, 'Mania for Subjugation,' is out now.