Sadly, at one time in history or another, genocide has occured in nearly every nation of the world.
Holocaust
Since World War II, there have been several recognized genocides, including the Holocaust, the Cambodian Genocide (1975-1979), the Rwandan Genocide (1994), and the Bosnian Genocide (1992-1995). Other instances, such as the Armenian Genocide and the Darfur Genocide, have also been noted. Estimates suggest that there have been over a dozen significant cases of genocide since 1945, each with varying degrees of recognition and international response. The exact number can be difficult to quantify due to differing definitions and classifications of genocide.
Allegations of a "Tibet genocide" has never been proven, nor is it recognized by any country in the world.
The nazis killed their own citizens and those in surrounding countries - specifically those of the Jewish religion, gypsies, etc.
Armenian Genocide is commemorated on 24 April every year. It took place in 1915, however earlier deportation to death and massacres were practiced in Ottoman empire from 1880's.
You have to be more specific about which genocide you are referring to, as there has been dozens of genocide over the years.
Yes Rowanda and Dafur
Third World Genocide was created in 2003-08.
To kill all those of non-aryan decent. (Blond hair and Blue eyes.)
Typically, a genocide is "certified" by leading academics when a set of circumstances in the world qualifies under the definition of genocide.
well there is always the animal genocide that occurs everyday.
There have been many genocides all over the world, so you have to be more specific.