I am wondering if there where actual cases when one civilization/country got advanced technology from another and due to lack of knowledge lost it. By advanced technology I mean that it was advanced for that particular civilization/country at that time, not necessary advanced for us now.
EDIT: Sorry for late response. Updated according to comments.
It For clarification: it should not be lost because they thought they do not need it any more. They should want it to have and use it but due to lack of knowledge how to operate/preserve lost it.
