In 1919 he published a three-volume collected works of the 16th-century poet Jan Kochanowski, who had founded Polish literary language; in 1925 the book on Władysław Reymont, commemorating Reymont's Nobel Prize in Literature; and the same year became president of the Polish PEN Club after the death of Stefan Żeromski.
Jan van Eyck | Jan Matejko Academy of Fine Arts | Jan Hammer | Jan Peerce | Jan Hus | Jan Mayen | Jan Guillou | Jan Smuts | Jan Fabre | Jan Morris | Jan Matejko | Jan Garbarek | Ignacy Jan Paderewski | Jan van Riebeeck | Jan Troell | Jan Tinbergen | Jan Neruda | Jan-Michael Vincent | Jan Kochanowski | Jan Brewer | Jan Bechtum | Jan Zamoyski | Jan Ullrich | Jan Peter Balkenende | Jan Egeland | Robert Jan Stips | Mian Shakirullah Jan | Jan Weenix | Jan Timman | Jan Murray |