🌐EnglishEnglishDeutschEspañolFrançaisItalianoSvenskaTiếng ViệtРусскийالعربية日本語EntityQ722681· pop 7· linked from 32 articles1640 in scienceoverview of natural science-related events during the year of 1640Connectionslist of years in scienceEntityscienceEntityCategories1640 in science1640s in science17th century in science