Reidemeister studied mathematics and physics from 1917 to 1924 in Göttingen, Germany, while also taking courses at the "Kunstschule" (art school) in 1919.
Marie Reidemeister worked at this museum in Vienna until the brief civil war in Austria in 1934, moving then with Neurath (a prominent Social Democrat) and Arntz (who had allegiances to radical-left groups) to The Hague.
A new name was needed for the Vienna Method now that its original context was left behind: Marie Neurath developed the acronym Isotype (International System of Typographic Picture Education) in 1935 on the analogy of Charles Kay Ogden's "Basic English".
[4] In 1940, as the German army invaded the Netherlands, Reidemeister escaped with Neurath to England, while Arntz stayed behind in The Hague.
In 1941, after release from internment (as "enemy aliens"), Marie and Otto Neurath were married,[1] and resumed their work in Oxford, founding the Isotype Institute.