Encyclopaedia Britannica

From Wikipedia, the free encyclopedia.

Encyclopaedia Britannica was originally published in Edinburgh by Adam and Charles Black; the trademark and publication rights were sold after the 11th edition to an American company, which is now the current publisher.

1st edition	1768-1771	3 vol.
2nd edition	1777-1784	10 vol.
3rd edition	1788-1797, 1801 sup.	18 vol. + 2 sup.
4th edition	1801-1809	20 vol.
5th edition	1815	20 vol.
6th edition	1820-1823, 1815-1824 sup.	20 vol. + 2 sup.
7th edition	1830-1842	21 vol.
8th edition	1852-1860	21 vol. + index
9th edition	1870-1890	24 vol. + index.	(1)
10th edition	1902-1903	9th ed. + 9 sup.	(2)
11th edition	1910-1911	29 vol.	(3)
12th edition	1921-1922	11th ed. + 3 sup.
13th edition	1926	11th ed.+ 6 sup.
14th edition	1929-1973	24 vol.
15th edition	1974-1984	28 vol.
15th edition	1985-	32 vol.

vol. = volume, sup. = supplement

(1) 9th ed. featured articles by notables of the day, such as James Maxwell on Electricity and Magnetism, and William Thomson (who became Lord Kelvin) on Heat.
(2) 10th ed. added a maps volume and an index volume
(3) 11th ed. Considered the classic edition of Encyclopaedia Britannica; available in the public domain (see 1911 Encyclopaedia Britannica).

The web site for Encyclopaedia Britannica is at http://www.britannica.com/

Note that the brand name of this particular encyclopedia uses the British spelling, with "ae" (or "æ", which may not be available in some browsers). Encyclopaedia Britannica Inc. owns a trademark on the word "Britannica".