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There are many instances in history which are categorized as ‘mass killings’. Mass killing, genocide and massacre are the terms which describe these brutal killings of individuals. These terrible acts were conducted by fascist dictators, cruel regimes and notorious militants. Below we have compiled a list of such mind-numbing brutal instances in history with a staggering amount of deaths.
Read about the 20 worst mass killings in history.
1) Chairman Mao Zedong killed an estimated 15- 55 million people during China’s “Great Leap Forward” campaign from 1958–1962.
2) Joseph Stalin, the dictator of the USSR from 1929–1953, is believed to have killed between 20- 60 million people.
3) Romans liked watching people killing other people – in one single event itself 10,000 people were killed in Rome’s Colosseum!
4) The number of Chinese killed by the Japanese during WWII is greater than the number of Jews killed in the Holocaust.
5) The Mongols killed so many that Iran’s population did not reach its pre-Mongol levels until the mid-20th century.
6) Cambodia’s brutal dictator, Pol Pot killed nearly 1.4- 2.8 million people under his regime.
7) Russians killed more Nazis in the Battle of Stalingrad alone than they were killed during the entire WWII by America.
8) Organised by Queen Catherine De’ Medici of France, the St. Bartholomew’s Day massacre caused the death of 5,000 to 30,000 French protestants.
9) One of the worst killings in history was done by the Ottoman Empire. During the mid-1800s they were behind the killing of 80,000 to 300,000 Armenians.
10) The German Wehrmacht and fellow Axis powers systematically killed between 70,000- 90,000 poles in the Wola suburb of Poland. This mass killing in history was directed by Adolf Hitler who had commanded the soldiers to ‘kill anything that moves’.

11) Another one of the worst killings in history was the Nanking Massacre. The imperial Japanese troops were responsible for killing 40,000 to over 300,000 people in the Nanking city of China.
12) The First Republic of Korea under President Syngman Rhee ordered the violent killing of people participating in the Jeju uprising. The South Korean government is responsible for the death of 14,000 to 30,000 people which was 10% of Jeju’s population at the time.

13) During the Korean War, the South Korean Government was responsible for the killing of 60,000– 1.1 million communists and those suspected of communism.
14) Another one of the worst killings in history were the Indonesian Mass Killings of 1965-66. The anti-communists of the Indonesian army were responsible for the deaths of 500,000 to more than 1 million people!
15) Conducted by the Russian Empire, the 19th-century Circassian genocide is one of the worst killings in history. It is responsible for the death of 800,000– 1.5 million people.
16) During the Rwandan Civil War, the armed militia killed 500,000 to 600,000 members of the Tutsi ethnic group.
