- Athanasios “Thanasi” Kokkinakis (; born 10 April 1996) is an Australian professional tennis player.
- In the second round of the 2018 Miami Open, Kokkinakis defeated then World Number 1 Roger Federer.
- 1858 “Big Ben”, a 13.76 tonne bell, is recast at the Whitechapel Bell Foundry
- 1972 US, USSR & 70 other nations agree to ban biological weapons
- 1998 The Good Friday Agreement [Belfast Agreement] for Northern Ireland is signed by the British and Irish governments
- 1902 Physicist Robert A. Millikan (34) weds Greta Blanchard
- 1935 Nazi politician Hermann Goering (42) weds Emmy Sonnemann (42) in Berlin
