In a history management system 1, a server device 10 records in a ledger database 20, with respect to each of a plurality of products, a history each of a plurality of processes through which the plurality of products passes, and searches the ledger database 20 for the history each of the plurality of processes through which the plurality of products passes. The server device 10 generating access destination information unique to a content history each of the plurality of processes through which the plurality of products passes and for which the history each has been acquired by the search. When receiving an access from a purchaser terminal 50, the server device 10 transmits content corresponding to the content history of the plurality of processes specified by the designated access destination information to the purchaser terminal 50.