Fighting Ships Of The Far East Vol 1 China And Southeast Asia 202 Bc Ad 1419 New Vanguard -

history of gunpowder wikipedia - gunpowder is the first physical explosive before its discovery many incendiary and burning devices had been used including greek fire the discovery of gunpowder is attributed to experimentation in chinese alchemy by taoists in the pursuit of immortality and is popularly listed as one of the four great inventions of china it was discovered during the late tang dynasty 9th century but the, jin song wars wikipedia - the jurchens were a tungusic speaking group of semi agrarian tribes inhabiting areas of northeast asia that are now part of northeast china many of the jurchen tribes were vassals of the liao dynasty 907 1125 an empire ruled by the nomadic khitans that included most of modern mongolia a portion of north china northeast china northern korea and parts of the russian far east