Selected dates:
1919
Entered the Vitebsk Art College. During his studies, he was a member of the creative committee of UNOVIS.
1921
He was deputy rector V. Ermolaeva and led the Artistic and Practical Institute during her business trips.
1922
Gavris graduated from the Vitebsk Art and Practical Institute with a diploma "for the title of a free artist and a higher instructor with the right to teach in art technical schools."
August 15, 1922
He is the acting rector of the institute.
1920 - 1930s
Gavris is an active figure in the Belarusian revival, striving to create modern national art on ethnographic foundations.
1937
Sentenced to death as a member of the "Polish Military Organization".