The kopis, a curved, single-edged sword used in ancient Greece, significantly influenced the development of later sword designs. Renowned for its forward-curving blade, the kopis excelled in delivering powerful chopping strikes, making it a favored weapon among cavalry. This design inspired other weapons like the Roman falcata and eventually influenced sabres and machetes. The kopis’s efficient shape for cutting and its versatility in close combat laid the groundwork for curved blades used across cultures.