Answer:
1984 anti-Sikh riots
The 1984 anti-Sikh riots, also known as the 1984 Sikh Massacre, was a series of organised pogroms against Sikhs in India following the assassination of Indira Gandhi by her Sikh bodyguards. The ruling Indian National Congress had been in active complicity with the mob, as to the organisation of the riots.
Answer: Europe.
Explanation: North America and South America.