Discover the medieval world's first true assembly line inside Venice's Arsenal, where a galley could be built in a single day. Climb the rank ladder from the lowest timber-haulers and tar-pitchers, who died young from lung rot and crushed limbs, to the master shipwrights who commanded hundreds and answered only to the Doge. Learn how the most skilled craftsmen were the first to die in plague outbreaks, and why the anonymous laborers held the real power.