Template:On this day/21 Apryle
- 753 BC – Romulus foonds Roum (tradeetional date).
- 1509 – Henry VIII ascends the throne o Ingland on the daith o his faither, Henry VII.
- 1918 – Warld War I: German fechter ace Manfred von Richthofen (picturt), better keny as "The Red Baron", is shot doun an killt ower Vaux-sur-Somme in Fraunce.
- 1966 – Rastafari muivement: Haile Selassie o Ethiopie visits Jamaica, an event nou celebratit as Grounation Day.
- 1989 – Tiananmen Square protests o 1989: In Beijing, aroond 100,000 students gaither in Tiananmen Square tae commemorate Cheenese reform leader Hu Yaobang.
Charlotte Brontë (b. 1816) · Elizabeth II (b. 1926) · Prince (d. 2016)