Traditional boatbuilding demonstrates profound material knowledge developed through centuries of experimentation and observation. Boat builders in Kerala India construct their iconic kettuvallam rice barges using anjili wood specifically for underwater components due to its resistance to rot while using bamboo for flexible roofing structures that expand and contract with humidity changes. Maine's indigenous Wabanaki crafted birchbark canoes using materials available in their northeastern forest environmentbirch bark for the waterproof shell cedar for lightweight internal framing and spruce roots for stitching components together sealed with pine resin mixed with animal fat. Venice's distinctive gondolas incorporate eight different wood types selected for specific propertiesoak for strength in the keel cherry for aesthetic decking fir for stability in the sides and larch for water resistance below the waterline. This material intelligence extended to understanding seasonal harvestingcutting trees in winter when sap content is lowest for structural components or selecting saplings of specific ages for curved elements. While modern boatbuilding has largely transitioned to synthetic materials and mechanical fasteners traditional techniques are experiencing revival through cultural preservation programs and among craftspeople who recognize the elegance and sustainability of these ancient construction methods that created remarkably durable vessels without fossil fuels or industrial processes. Shutdown123