On the International Museum Day, May 18, the Museum-Library of Simiaon of Polack hosted an event dedicated to a literary scholar Mikola Praškovič. M. Praškovič passed PhD (literature) defense on the issues of early works of Simiaon of Polack in 1964. But his PhD thesis wasn’t published and then was literally lost for general readers for decades. Polack National Historical and Cultural Museum-Reserve maintaining a typescript of M.Praškovič’s dissertation is preparing it for publication. During the event the typescript was presented to the audience, the fragment of the authors excursion around the Museum-Library was conducted, as well as a new exhibition “Returning of a Forgotten Name” was opened.