Genocide is the systematic elimination of all or a significant part of a racial, ethnic, religious, or national group.
It can be done in two ways
1. Direct Action (Murder)
2. Indirect Means (Starvation ; Deportation)
Here is the list of most Horrific , largest, and best-known genocides in human history.
10. Amalekites & Midianites Genocide
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This is mentioned in Old Testament where supposedly GOD himself ordered Killings of these two arch-rival tribes of Israel Amalekites & Midianites. Thousands killed in an era when technology to kill was not available.
9. North Korean Genocide
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This Genocide has allegedly continued from 1945 to till today. Several million had died with starvation in North Korea.
8. Genocide against Germans after World War-2
Yes , You got it right. This was reverse Genocide after World war 2 where around one to two million Germans were killed when they were forced to leave from German Occupied Countries.
7. The Rwandan Genocide
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Tribal Confrontation between Tutsi and Hutus Tribes killed around 1 million to 3 million people.
6. Indian Partition
Our own , Partition of India killed more than 3 million people. It was also largest migration in Human History.
5. The Armenian Genocide
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The Ottoman Turks, under the leadership of War Minister Enver Pasha (1881-1922), may have conducted the first large-scale, organized genocide of the 20th century. During and immediately after the First World War, Turkey killed, deported, and starved to death as many as 3 million Armenians, along with hundreds of thousands of other non-Turks
4. The Killing Fields of Cambodia
The Killing Fields are a number of sites in Cambodia where collectively more than 4 million people were killed and buried by the Khmer Rouge regime, during its rule of the country from 1975 to 1979, immediately after the end of the Cambodian Civil War (1970–1975)
3. The holocaust
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The mass murder of Jews under the German Nazi regime during the period 1941–5. More than 6 million European Jews, as well as members of other persecuted groups.
2. Stalin Era in Russia
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Stalin killed around 20 million people in his era in USSR. He was more dangerous and brutal than Hitler.
1. The Great Leap Forward & Chinese Cultural Revolution
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Communists again. Killed around 45 million people in China during this period of Great Leap Forward and Cultural Revolution.