Fritz Kahn Fritz Kahn Fritz Kahn (29 September 1888 – 14 January 1968) was a German Jewish physician who published popular science books and is known for his illustrations, which pioneered infographics. Fritz Kahn was born in Halle an der Saale, Germany, the son of Arthur Kahn, a physician and author, and Hedwig Kahn, "née" Schmuhl. His father emigrated to the USA shortly after his birth, settling in Hoboken, New Jersey. Around 1893, after establishing his practise, he sent for his wife and son, and Fritz Kahn started school there. The family later moved to Manhattan, but in 1895 his mother returned
Ida Kahn degree in English literature from Northwestern University. She also pursued postgraduate work in London. Aside from her and Mary Stone, Gertrude Howe also adopted three boys. Kahn never married, though some of her adoptive family did. Kahn returned to China following her graduation from University of Michigan, Ann Arbor School of Medicine in 1896 and opened a dispensary along with Mary Stone in Jiujiang. After curing the wife of a notable Nanchang official, wealthy women—dubbed "Tai Tai"—started traveling from Nanchang to Jiujiang just to receive medical consultation from Kahn. These women were instrumental in increasing the revenue and notoriety of