title: Encyclopædia Britannica First Edition
context: The Encyclopædia Britannica First Edition (1768–1771) is a 3-volume reference work, an edition of the Encyclopædia Britannica. It was developed during the encyclopaedia's earliest period as a two-man operation founded by Colin Macfarquhar and Andrew Bell, in Edinburgh, Scotland, and was sold unbound in subscription format over a period of 3 years. Most of the articles were written by William Smellie and edited by Macfarquhar, who printed the pages. All copperplates were created by Bell.
question: When was the first publication of the Encyclopedia Britannica?
answers: 1768