The legendary sharpness of Japanese swords is widely known, and through the activities of various martial arts practitioner’s information on tameshigiri has also become more accessible in the recent years. But, for a large part, this information focuses on modern cutting tests and only briefly discusses the historical aspect. As far as sword collectors are concerned, the subject of tameshigiri has been approached by several experts in the past, but here too information is rather limited. This publication systematically processes this subject for the first time to provide an overview of the historical aspect of tameshigiri. Not only are the developments from mere sword tests to systematic cutting tests are addressed, it also explains the sword testers, the various cuts and set-ups for cuts, and the practice of recording cutting test results on sword tangs for example. It is rounded-off by a reference section which provides examples of tameshi-mei.