early life and activism jan appel, also known as jan voss, was a german revolutionary born in bremen, germany in 1890. his early life was marked by activism, joining the spd in 1908. appel's involvement in the german revolution of 1918 led to his prominence as a left communist activist and theorist. artistic pursuits although primarily known for his revolutionary activities, jan appel's artistic side is also noteworthy. as a painter, h…