Editing 1620 in science (section)

==Medicine==
* Nicholas Habicot, surgeon to the [[Duke of Nemours]], publishes a report of four successful "[[History of tracheal intubation#Tracheotomy|bronchotomies]]" which he has performed; these include the first recorded case of a [[tracheotomy]] for the removal of a [[thrombus]] and the first [[Pediatrics|pediatric]] tracheotomy, to extract a foreign body from a 14-year-old's [[esophagus]].<ref>{{cite book|last=Habicot|first=Nicholas|title=Question chirurgicale par laquelle il est démonstré que le chirurgien doit assurément practiquer l'operation de la bronchotomie, vulgairement dicte laryngotomie, ou perforation de la fluste ou du polmon|publisher=Corrozet|location=Paris|year=1620}}</ref>