The term refers to an explosive mixture, typically composed of sulfur, charcoal, and potassium nitrate. This compound deflagrates upon ignition, producing rapidly expanding gases. An early example is its utilization in Song dynasty China for creating rudimentary bombs and incendiary devices.
The significance lies in its transformative impact on warfare and technological development. It facilitated the creation of more powerful projectiles and siege weaponry, altering military tactics and contributing to the decline of feudal systems. Furthermore, its dissemination along trade routes spurred innovation and competition amongst different empires, ultimately affecting global power dynamics.