December 15, 1884
He was born in the town of Mogilno, Igumensky district, Minsk province (now Uzda district, Minsk region) into the family of engineer Savely Zak.
1902
Moved to France, to Paris. Attended the National Higher School of Fine Arts. Studied at a private art school – the Colarossi Academy.
1903
He traveled around Italy, visited Rome and Florence, and at the end of the year moved to Germany, to Munich, where he continued his studies at the art school of the realist painter Anton Ažbe.
1904
He returned to Paris. He painted portraits, landscapes, idyllic and genre compositions.
He regularly exhibited his works at the Autumn Salon (1904–1925, with breaks), the Salon des Indépendants (1906–1912), and the Tuileries (1904, 1925). He took part in a number of group exhibitions, such as the exhibition of the Parisian Society of Polish Artists in 1912 in Barcelona, the Armory Show in 1913 in New York, the Venice Biennale in 1914, and others.
He also organized a wide display of his works at a personal exhibition, which took place in 1911 at the Parisian gallery "Druet".
1912–1914
Works as a teacher at the Parisian private school La Palette Academy (Académie La Palette).
1914–1916
Lived in the south of France (Nice, Saint-Paul-de-Vence and Vence), traveled to Switzerland.
1916
He moved to Poland with his family and lived in the city of Częstochowa, often visiting Warsaw. He participated in exhibitions of Polish avant-garde artists who represented the “formism” movement in Polish art of the late 1910s – early 1920s (Krakow, 1917; Lvov, 1920); exhibitions in Warsaw of the Polish Art Club (1917–1919), and the New Group (1918). In 1917, a personal exhibition of works by Eugen Zak was also held in Warsaw.
1921
He became one of the founders of the Association of Polish Artists "Rhythm".
1921
He moved to Germany, lived in Berlin and Bonn, and collaborated with the magazine “Kunst und Dekoration”.
1922
Returned to France, to Paris. Worked actively and exhibited.
January 15, 1926
The artist died in Paris and was buried in the Montparnasse Cemetery.