Lost history list on Works 7.0

Microsoft Works 7.0. Up to recently I had a list of documents in History. The list disappeared. The documents are still findable on "search files" and after I open it. it comes onto the History list. Over time I have 100 plus files and it would be too tedious to have to find and open every one to get them back onto my History list. Any ideas on how to recover my original list and what I might have done wrong to lose it in the first place. Thanks so much for any suggestions.