[2] During the First World War, Han was one of several artists commissioned to create works commemorating Romania's armed forces.

[3] In the interwar period, he formed the Group of Four ("Grupul celor patru") artists' collective together with painters Nicolae Tonitza, Francisc Șirato and Ștefan Dimitrescu.

Briefly associated with Nichifor Crainic's right-wing journal Gândirea, Han would later write for Pamfil Șeicaru's Curentul as a cultural critic and polemicist.

[3] Han was accused of Freemasonry in December 1940 by the new National Legionary State (a fascist government led by the Iron Guard and Ion Antonescu).

[4] However, Han was quickly rehabilitated, and was awarded a number of distinctions by the new communist regime, including the titles "Master Emeritus of Art" (1961), "First Class Order of Labour" (1971), and "Star of the Socialist Republic of Romania" (1972).