thumb|right|April 29: The Frank Slide occurs April 19–21 (April 6–8 O.S.) – The first Kishinev pogrom, beginning on Easter Day, takes place in Kishinev, capital of the Bessarabia Governorate of the Russian Empire. At least 47 Jews are killed and others injured during mob rioting encouraged by blood libel articles in the press and led by priests; no attempt is made by police or military to intervene until the third day. April 26 – Atlético Madrid is officially founded as a professional association football club in Spain. April 29 The 30-million-m3 Frank Slide rockslide kills 70–90 in Frank, Alberta. The 7.0 Manzikert earthquake affects eastern Turkey, leaving 3,500 dead (local time; April 28 23:46 UTC).
thumb|right|April 29: The Frank Slide occurs April 19–21 (April 6–8 O.S) – The first Kishinev pogrom, beginning on Easter Day, takes place in Kishinev, capital of the Bessarabia Governorate of the Russian Empire. At least 47 Jews are killed and others injured during mob rioting encouraged by blood libel articles in the press and led by priests; no attempt is made by police or military to intervene until the third day April 26 – Atlético Madrid is officially founded as a professional association football club in Spain. April 29 The 30-million-m3 Frank Slide rockslide kills 70–90 in Frank, Alberta. The 7.0 Manzikert earthquake affects eastern Turkey, leaving 3500 dead (local time; April 28 23:46 UTC).