Peter's museum was a cabinet of curiosities dedicated to preserving "natural and human curiosities and rarities", a very typical type of collection in the period. The tsar's personal collection, originally stored in the Summer Palace, features a large assortment of human and animal fetuses with anatomical deficiencies, which Peter had seen in 1697 visiting Frederick Ruysch and Levinus Vincent. The underlying idea of their kunstkammers was to acquire full knowledge of the world. The Dutch word "kunst-kamer" seems to be introduced by the surgeon Stephanus Blankaart in 1680.