time capsule: container for preserving historical records to be discovered at some future time
container: any object that can be used to hold things (especially a large metal boxlike object of standardized dimensions that can be loaded from one form of transport to another)
forceps delivery: delivery in which forceps are inserted through the vagina and used to grasp the head of the fetus and pull it through the birth canal; since the forceps can injure the fetus this procedure has generally given way to cesarean deliveries