According to the 18th-century historian Ludovico Antonio Muratori, rockets were used in the war between the Republics of Genoa and Venice at Chioggia in 1380. It is uncertain whether Muratori was correct in his interpretation, as the reference might also have been to bombard, but Muratori is the source for the widespread claim that the earliest recorded European use of rocket artillery dates to 1380.[34] Konrad Kyeser described rockets in his famous military treatise Bellifortis around 1405.[35] Kyeser describes three types of rockets, swimming, free flying and captive.