Ming dao dating
During the mid-Ming these new sabers would completely replace the jian as a military-issue weapon.
The blades of Tang era dao are reminiscent of the Japanese chokuto or the popular image of the perhaps-mythical ninjato.During the Song Dynasty, one form of infantry dao was the shoudao, a chopping weapon with a clip point.While some illustrations show them as straight, the 11th century Song military encyclopedia Wujing Zongyao depicts them with curved blades - possibly an influence from the steppe tribes of Central Asia, who would conquer parts of China during the Song period.Dao is a category of single-edge Chinese swords primarily used for slashing and chopping (sabres), often called a broadsword in English translations because some varieties have wide blades.In China, the dao is known as one of the four major weapons, along with the gun (staff), qiang (spear), and the jian (straight sword), and referred to as "The General of All Weapons." Dao is actually a generic word used to denote any member of a family of single-edged, broad-bladed cutting or slicing tools, but in common, everyday usage means knife.
These could include intricate carvings on the blade and "rolling pearls": small metal balls that would roll along fuller-like grooves in the blade.