Events for April 23

April 23, 1792

Thomas Romney Robinson, astronomer and physicist, is born in Dublin

John Thomas Romney Robinson FRAS FRS FRSE (23 April 1792 – 28 February 1882), usually referred to as Thomas Romney Robinson, was a 19th-century Irish astronomer and physicist. He was the longtime director of the Armagh Astronomical Observatory, one of the chief astronomical observatories in the UK of its time.

April 23, 1945

Blackout restrictions in Scotland lifted as World War II heads to a conclusion.

A blackout during war, or in preparation for an expected war, is the practice of collectively minimizing outdoor light, including upwardly directed (or reflected) light. This was done in the 20th century to prevent crews of enemy aircraft from being able to identify their targets by sight, such as during the London Blitz of 1940. In coastal regions, a shoreside blackout of city lights also helped protect ships from being seen silhouetted against the artificial light by enemy submarines farther out at sea.

April 23, 1661

Charles II crowned at Westminster Abbey.

Charles II (29 May 1630 – 6 February 1685) was King of Scotland from 1649 until 1651 and King of England, Scotland, and Ireland from the 1660 Restoration of the monarchy until his death in 1685.

January 8, 1107

King Alexander I crowned

King Alexander I of Scotland, also known as Alexander I of Alba, was crowned on April 23, 1107. He was the son of King Malcolm III and Queen Margaret, and his reign marked an important period in the history of Scotland. Alexander I ruled as King of the Scots from 1107 until his death in 1124.