The Myth of the Twentieth Century (German: Der Mythus des zwanzigsten Jahrhunderts) is an influential pseudo-scientific and pseudo-historical book by Alfred Rosenberg, a Nazi theorist who was one of the principal ideologues of the Nazi Party and editor of the party newspaper, Völkischer Beobachter. Rosenberg was later convicted for crimes against humanity at the Nuremberg trials and executed in 1946.

Not to be confused with the very conservative and intellectual Myth of the Twentieth Century podcast still going on many platforms. (I posted on SaidIt when they chose to quit YouTube leaving their channel with old episodes.) I haven't listened to these guys since well before COVID, but was recently reminded of the title.