1911 Encyclopædia Britannica

11th edition of Encyclopædia Britannica

The Encyclopædia Britannica Eleventh Edition (1910–1911) is one of the most famous editions of the Encyclopædia Britannica. Some of its articles were written by the best-known scholars of the time. The articles are still of value and interest to modern scholars as examples for the knowledge of the 19th and early 20th centuries. They contain, however, a number of problematic areas for the modern scholar using them as a source. The eleventh edition is no longer restricted by copyright and is available online, both in its original text and in part in other online encyclopaedias and works.

Encyclopædia Britannica Eleventh Edition
The Encyclopædia Britannica, a dictionary of arts, science, literature and general information, eleventh edition.
First page of the Encyclopædia Britannica, Eleventh Edition
CountryUnited States
LanguageBritish English
Release number
PublisherHorace Everett Hooper
Publication date
Media typePrint and Digital
Preceded byEncyclopædia Britannica Tenth Edition 
Followed byEncyclepædia Britannica Twelfth Edition 
TextEncyclopædia Britannica Eleventh Edition at Wikisource



The 1911 eleventh edition was assembled under the leadership of American publisher Horace Everett Hooper, and edited by Hugh Chisholm. American marketing methods assisted sales. Some 11% of the contributors were American, and a New York office was established to run that side of the enterprise.

Some articles were written by the best-known scholars of the day, such as Edmund Gosse, J. B. Bury, Algernon Charles Swinburne, John Muir, Prince Peter Kropotkin, T. H. Huxley, G. K. Chesterton, Edmund Husserl and William Michael Rossetti, and others well known to that era.

The eleventh edition introduced a number of changes to the format of the Britannica. It was the first to be published complete, instead of the previous method of volumes being released as they were ready. The content of the encyclopaedia was made up as follows:

Subject Content
Geography 29%
Pure and applied science 17%
History 17%
Literature 11%
Fine art 9%
Social science 7%
Psychology 1.7%
Philosophy 0.8%

The eleventh edition has become a commonly quoted source because of the reputation of the Britannica at that time and because it is now in the public domain and has been made available on the Internet. The Encyclopædia Britannica of 1911 has been used as a source for many modern projects, such as Wikipedia and the Gutenberg Encyclopedia.

Gutenberg Encyclopedia


The Project Gutenberg Encyclopedia is actually the eleventh edition of the Encyclopædia Britannica, renamed to address Britannica's trademark concerns.

Section From To Links
Volume 1:   A   –   Androphagi [1]
Volume 2.1.1:   Andros, Sir Edmund   –   Anise [2]
Volume 4.3:   Bréquigny   –   Bulgaria [3]
Volume 4.4:   Bulgaria   –   Calgary [4]

Other websites


Free, public-domain resources


Articles about the Encyclopædia Britannica Eleventh Edition

  • 'Information ... Slightly Coloured by Prejudice', by Lawrence Biemiller, The Chronicle of Higher Education, Notes From Academe, Volume 52, Issue 47, Page A40. (No longer available on-line).
  • "Music and art in the 1911 Encyclopædia Britannica" by Charles T. Downey (Ionarts, 25 August 2006)