Marcel Janco (German: [maʁˈsɛl ˈjaŋkoː], French: [maʁsɛl ʒɑ̃ko]; common rendition[lower-alpha 1] of the Romanian name Marcel Hermann Iancu[1] [marˈtʃel ˈherman ˈjaŋku]; 24 May 1895 – 21 April 1984) was a Romanian and Israeli visual artist, architect and art theorist. He was the co-inventor of Dadaism and a leading exponent of Constructivism in Eastern Europe. In the 1910s, he co-edited, with Ion Vinea and Tristan Tzara, the Romanian art magazine Simbolul.