This infographic showcases the earliest groundbreaking submarines leading into the 1900s, tracing the evolution of underwater innovation through key designs and milestones. I chose to represent each submarine and its corresponding year along a winding path that mirrors the internal design of one of the submarines featured—where crew members sat in a row and turned a crank to power the propeller manually. The path not only guides viewers chronologically but also pays homage to the human-powered mechanics of early subs. The addition of a partial submarine window gives viewers the sense of peering into the deep history of naval engineering.