1932 - Ter Braak, together with Edgar du Perron and Maurice Roelants, started the literary magazine Forum which proved to be one of the most important literary periodicals in the Dutch-speaking world in the nineteen-thirties.
1933 - Ter Braak, then living in The Hague, joined the Dutch liberal daily Het Vaderland as a literary affairs editor and was one of the first Dutchmen to understand the looming threat of Nazism.
1940 - Four days after the Germans had invaded the Netherlands, on the 14th of May, after a failed attempt to flee to England, Menno ter Braak committed suicide by using a sedative, combined with an injection of poison.