Euthanasia Program, also called T4 Program. "euthanasia" represented a euphemistic term for a clandestine murder program which targeted for systematic killing mentally and physically disabled patients living in institutional settings in Germany and German-annexed territories.
In Berlin, Tuesday, Sept. 2, 2014. Germany has inaugurated the memorial to more than 200,000 people with physical and mental disabilities who were killed by the Nazis, who deemed their lives “worthless. The 24-meter (79-foot) blue glass pane stands on the site of a villa where the mass murder of patients at hospitals and mental institutes was coordinated starting in 1940.