Chinaasanimportantsourceofhumancivilizationhadgivenbirthtobrilliantancientscienceandtechnologyandledtheworldinmostofthehistoryofworldcivilization,andtillthemid-19thcenturyitseconomywasthelargestintheworld.ThedevelopmentofscienceandtechnologyinancientChinawasbasedontheobservationandstudyofthehumanbody,theobjectiveworld,theheavens,andtheearth,whichledtotheconceptof"Integrationofnatureandman,"TheachievementsnourishedChinesecultureandcivilization,andcontributedgreatlytomankind.AncientChineseinventionsanddiscoveriesarerichandnumerous.