© National Portrait Gallery, London
Sir William Chambers
by Richard Houston, published by Robert Sayer, after Francis Cotes Click on the links below to find out more
mezzotint, published 1 June 1772
15 1/8 in. x 10 7/8 in. (385 mm x 277 mm) plate size; 15 3/8 in. x 11 1/8 in. (390 mm x 283 mm) paper size
Given by Sir Herbert Henry Raphael, 1st Bt, 1916
- Francis Cotes (1726-1770), Portrait painter. Artist associated with 89 portraits, Sitter in 1 portrait.
- Richard Houston (1721 or 1722-1775), Engraver. Artist associated with 188 portraits.
- Robert Sayer (1724 or 1725-1794), Printseller and publisher. Artist associated with 196 portraits.
Somersett's Case: William Murrary, 1st Earl of Mansfield, the Lord Chief Justice, outlaws slavery in England after the case of American slave John Somersett is brought before him.Royal Marriages Act requires the monarch's consent for the marriage of all members of the royal family.
Art and science
Chemist Daniel Rutherford demonstrates his method for isolating nitrogen from other gases.Inventor James Watt produces the first micrometer to simply and accurately measure small distances. It is to prove crucial in the development of early machinery. Britain's first trunk canal, the Staffordshire and Worcestershire Canal, opens for business.
Swiss pastor Johann Kaspar Lavater's Essays on Physiognomy
revive the study of character through outward appearance. Captain James Cook sets off, aboard HMS Resolution
, on his second Pacific voyage.First partition of Poland marks the start of Poland's disappearance as an independent state.