ENMatas Šalčius (1890-1940), Lithuanian journalist, public figure and traveler, wrote his diary in 1923, while he was undergoing treatment in one of the clinics of Kdnigsberg. In 1923, Šalčius was admitted to the clinic because he was unable to cope with the tension of preparing for the Klaipėda Revolt. The diary records Šalčius's reflections and experiences; he also writes about the daily events. The first entry in the diary, made on January 15, 1923, coincides with the arrival of the Lithuanian army into the Klaipėda region, which at that time was administered by the French. The author of the diary writes about this significant military and political event in the history of Lithuania in an elated manner, hoping that when Lithuania regained Klaipėda, it would also recover the Polish-occupied Vilnius.