Historically and archaeologically, some cultures that flourished in that period of history had to display several technological artifacts that were forgotten by cultures of later ages, such as healing machines as effective as the much later bacta, food rations that remained fresh for centuries thanks to a technology similar to stasis field, Tractor beam projectors as small as hand-held wand, portable fusion reactors that could be carried in backpacks. In the Imperial Period larger devices for the same functions were used, and the finding of such during the excavations of the Valley of the Jedi impressed the agents of the Imperial Remnant.