Moments from the opening ceremony of the exhibition "The Path of Teachers: Researches of Cultures of Lithuanian Nations", dedicated to Antonas Antonovičius (1910-1980) and the 55th anniversary of his monography "Belarusian Texts Written in Arabic and Their Graphical and Orthographical System", as well as to 85th birthday of professor Valerijus Čekmonas (1937-2004).