Nazis invade Denmark and Norway
Nazi Germany swiftly occupies Denmark and Norway.
Nazi Generalgouvernement takes over Jewish businesses
Large Polish and Jewish-owned businesses in the Generalgouvernement are placed under the control of the Nazi administration. All Jews must register their property as part of plans to gain control of Jewish assets in the Generalgouvernement.
Severely disabled patients murdered with carbon monoxide gas
The use of carbon monoxide gas to murder individuals with severe disabilities is introduced.
Warsaw Judenrat established
Nazi policy directs the creation of the Warsaw Judenrat (Jewish Council) headed by Adam Czerniakow. A year later, the Warsaw ghetto--the largest in Europe--is sealed.
Hitler orders murder of mentally and physically disabled Germans
Hitler directly orders the murder of tens of thousands of physically and mentally disabled persons in Germany. Doctors, nurses, and other health care workers cooperate in the murder of those in their care. The so-called "euthanasia" program is conducted under the codename "T4".