This article delves into the intricate evolution of swords and sabers in China and Iran, shedding light on the craftsmanship that shaped these formidable weapons. The article begins by exploring the genesis and progression of sword shapes in China, focusing on the distinct forms that emerged over time. It particularly highlights the stark differences between the straight-edged jian and the various types of dao, which are characterized by their single-edged design. The discourse then shifts to the Persian context, unraveling the true essence of the term ‘shamshir’. Contrary to the common misconception held by numerous scholars and collectors in the West, ‘shamshir’ is not confined to highly curved sabers. Instead, it is a broad term used in Persian to denote any kind of sword, irrespective of its shape. The article further delves into the historical period when curved swords began to gain prominence in both China and Iran. This exploration not only provides a deeper understanding of the evolution of these weapons but also offers insights into the cultural and historical contexts that influenced their development.