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Somali militants attack the DusitD2 hotel in Nairobi, Kenya killing at least 21 people and injuring 19.
After establishing the city of Santo Domingo, Christopher Columbus departs for Spain, leaving his brother in command.
Mohandas Gandhi organizes a day of "prayer and fasting" in response to the killing of Indian protesters in the Jallianwala Bagh massacre by the British colonial troops three days earlier.
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