[Not Available].
D049690:History, Ancient; D049692:History, Early Modern 1451-1600; D049691:History, Medieval; D049711:History, Modern 1601-; D008887:Military Medicine / Q000266:history*; D009326:Naval Medicine / Q000266:history*; D014730:Veterinary Medicine / Q000266:history*
Animal transport loading and unloading, by means of slings--through four centuries.