plank surfboard

Type of finless solid-wood surfboard used from antiquity until the 1940s. While it's been argued that the ancient Peruvian reed-bundled caballito ("little horse") is the original surf craft, the surfboard as it exists today traces its roots back to the ancient Hawaiian olo or alaia—plank-style boards made of wiliwili, koa, or breadfruit wood. (The word "plank" didn't come into use until the early 1930s, with the popularization of the hollow "cigar-box" board.)

As surfing was exported from Ha...