For centuries, tarsilas have done far more than record family trees in Muslim Mindanao; they have defined power, preserved honor, and anchored entire communities to their history. These genealogical records connect local rulers to the Prophet Muhammad, authorize marriages and political alliances, and legitimize claims to land and sovereignty. During colonial invasions, they became instruments of resistance; in today’s Bangsamoro, they remain vital to cultural identity and political legitimacy. This episode explores how these living chains of memory transformed genealogy into one of the most enduring forces in Philippine history.