1919–Mahatma Gandhi organizes a day of "Prayer and Fasting" in response to the killing of Indian protestors in Amritsar, in the Jallianwala Massacre by British colonial troops three days earlier.
1994–Hutusoldiers in Rwanda begin the Massacre of Nyarubuye on the Tutsi people. By the time it ends the next day, around 2,000 people have been killed.
2013– A magnitude 7.8 earthquake strikes southeast Iran, near the border with Pakistan. Damage is reported on both sides of the border.
2014– The MV Sewolferry, travelling from Incheon to Jeju Island off the south coast of South Korea, sinks near Jindo Island off the southwest coast, killing 295 people.
2014–Scientists announce the possible discovery of a new moon of Saturn being created out of its rings.
2017–Turkey holds a referendum on changing the constitution to that of a Presidential republic; Results indicate just over half of voters support the proposal.