Long ago, bad things happened in Germany.
Long ago, bad things happened in Germany. 
During World War II, a very sad thing happened in Germany. It was called Aktion T4.
Nazi leaders wanted to make the German people "pure." They thought people with certain illnesses were not useful. 

Many people tried to stop this. Some church leaders spoke out. A man named Clemens von Galen led many protests. 
Between 275,000 and 300,000 people were killed in hospitals. This happened in Germany, Austria, and other places. After the war, many of the people who did this were put on trial. They were found guilty of murder.
Aktion T4 was a campaign of mass murder in Nazi Germany. This program targeted people with physical disabilities and the mentally ill. The name T4 comes from a street address in Berlin. It was the location of a department on Tiergartenstrasse 4. This office helped recruit and pay the people involved in the killings.
The program worked through a system of medical choices. Certain doctors were allowed to pick patients they called "incurably sick." These doctors used medical exams to decide who would die. They called this a "mercy death." To hide what was happening, they often lied to families. They told parents that children were going to "special sections" for better care. Instead, the children were killed with toxic chemicals like phenol. 
This plan began because of Nazi ideas about "racial hygiene." Leaders like Adolf Hitler wanted to cleanse the German people. They believed certain people were not "useful" to the state. In 1939, Hitler signed a note to start the killings. He gave permission to his doctor, Karl Brandt, and Philipp Bouhler. The killings lasted from September 1939 until the end of the war in 1945. 
The scale of the killings was very large. Between 275,000 and 300,000 people were killed in hospitals. This happened in Germany, Austria, occupied Poland, and the Czech Republic. Many victims were taken from church-run asylums. About 200,000 people died in Germany and Austria. Another 100,000 victims were in other European countries. 
Many people fought against these unfair rules. In 1940, the Holy See said these killings were against divine law. A bishop named Clemens von Galen led many large protests. His actions created the strongest protest against Nazi policy. Even though the official program stopped in 1941, some killings continued. After the war ended, many of the people responsible were put on trial. They were convicted of murder and crimes against humanity. 
Aktion T4 was a campaign of mass murder carried out in Nazi Germany. It targeted people with physical disabilities and those with mental illnesses. The name "T4" is an abbreviation for Tiergartenstrasse 4. This was the address of a Chancellery department in Berlin. This office recruited and paid the staff involved in the killings.
The program was based on the Nazi policy of "racial hygiene." This was the belief that the German people needed to be cleansed of "racial enemies." These enemies included the disabled and the mentally ill. Nazi leaders believed these people were not useful to the state. They also wanted to save money by reducing the cost of asylums. Some leaders believed that only the strongest genes should be passed on to future generations.
The mechanism of the program relied on medical authority. Certain physicians were authorized to select patients. They chose people deemed "incurably sick" after a critical medical examination. These doctors would then administer what they called a "mercy death." To hide their actions, they often used deceit. They told parents that children were going to "special sections" for better treatment. Instead, the children were killed using toxic chemicals like phenol. 
The killings followed a specific sequence of administrative steps. In October 1939, Adolf Hitler signed a "euthanasia note." This document was backdated to September 1, 1939. It gave permission to his physician, Karl Brandt, and Philipp Bouhler, to begin. The program included the creation of the Reich Committee for the Scientific Registering of Hereditary and Congenital Illnesses. This committee helped identify children with conditions like Down syndrome or physical malformations. 
There were several distinct stages and locations used for the killings. Extermination centers were set up at six existing psychiatric hospitals. These locations included Bernburg, Brandenburg, Grafeneck, Hadamar, Hartheim, and Sonnenstein. 
History shows that the program grew out of earlier medical ideas. In the early twentieth century, sterilization was a common medical field. Laws in countries like the United States and Canada allowed coerced sterilization. In 1933, Germany passed the "Law for the Prevention of Hereditarily Diseased Offspring." This law led to the compulsory sterilization of about 360,000 people between 1933 and 1939. The T4 program was a much more violent escalation of these earlier policies.
The scale of Aktion T4 was immense. Between 275,000 and 300,000 people were killed in psychiatric hospitals. This occurred in Germany, Austria, occupied Poland, and the Protectorate of Bohemia and Moravia. Originally, records showed 70,273 victims, but new evidence from East German archives increased this number. About 200,000 victims were in Germany and Austria, while 100,000 were in other European countries.
Many people protested against these actions. The Holy See announced in 1940 that killing innocent people was against divine law. In 1941, Clemens von Galen, the bishop of Münster, led widespread protests. His intervention was one of the strongest protests against Nazi policy. Despite these protests, the killings continued informally until 1945. The technology used in T4, such as lethal gas, was later used in other mass murder operations. After the war, many perpetrators were tried and convicted for crimes against humanity. 
🖼️ Images & Media (15)
+ 3 more
More to explore
✨ What else?
Related topics you might enjoy
🔬 Go deeper
More advanced topics to explore
🪜 Step back
Simpler topics to build understanding
What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.