16 April, 1964 – The Rolling Stones release their debut album

The album The Rolling Stones, released in the United States with the added title, England's Newest Hit Makers, topped the UK charts for 12 weeks.

17 April, 1986 – The world's longest war ends without a single shot having been fired

The state of war between the Netherlands and the Isles of Scilly had been extended for a total of 335 years by the lack of a peace treaty. Some historians doubt that war had ever been declared.

18 April, 1949 – Ireland becomes an independent republic

Six counties in the northern part of the island remained in the Commonwealth, leading to a decades-long ethno-nationalist conflict that culminated in ‘The Troubles’.

19 April, 1919 – Leslie Irvin makes the world's first free-fall parachute jump

The jump was executed to test a new kind of parachute, which was also the first featuring a ripcord. The Hollywood stuntman broke a leg on landing.

20 April, 1951 – A human organ is surgically replaced for the first time

Dan Gavriliu, a Romanian surgeon, performed the first total surgical replacement of the human esophagus, using sections of stomach to bypass damaged tissue.

21 April, 1992 – The first exoplanets are discovered

Polish astronomer Aleksander Wolszczan in 1992, announced that he has found two exoplanets which are orbiting the pulsar PSR 1257+12.

22 April, 1977 – Optical fibre is used for telephone transmissions for the first time

Fibre-optic technology allows sending information over long distances by means of light pulses. It played an important role in the development of modern-day global communications.