Faculty Advisor

Lados, Diana A.

Faculty Advisor

Thomsen, Tom Hartvig


The Period of Disunity in Imperial China (220 CE - 580 CE) was an era of great strife, ridden with warfare. However, during this time, many innovations took place, especially with regards to weapons and armor. One such weapon, the dao, a curved, single-edged sword used by the Chinese during this period, is the main focus of the second section of this paper. This project first study the historical background during this period, then dive into the specifics of the dao. Once the background is finished, the next step is to build a replica of the dao, and describe the processes and materials that go into making the weapon, both now and during the Period of Disunity.


Worcester Polytechnic Institute

Date Accepted

April 2017

Project Type

Interactive Qualifying Project



Advisor Department

Mechanical Engineering