Changes

''Encyclopædia Britannica'' went through eleven editions before its publishing headquarters was moved from London to Chicago; the 1911 work is regarded as among the finest encyclopedias ever printed.  A 28-volume fifteenth edition was published in 1974 in which the format of the encyclopedia was divided into three major sections: the ''Micropædia: Ready Reference and Index'', which presented the basic, general information normally found; the ''Macropædia: Knowledge in Depth'', which presented many articles in great detail; and the ''Propædia: Outline of Knowledge'', the guide to the encyclopedia as a whole with its thematic connections as well as an index to the contributers<ref>https://www.britannica.com/topic/Encyclopaedia-Britannica-English-language-reference-work/Fifteenth-edition</ref>.  By 2012 it had expanded to 32 volumes.

''Encyclopædia Britannica'' went through eleven editions before its publishing headquarters was moved from London to Chicago; the 1911 work is regarded as among the finest encyclopedias ever printed.  A 28-volume fifteenth edition was published in 1974 in which the format of the encyclopedia was divided into three major sections: the ''Micropædia: Ready Reference and Index'', which presented the basic, general information normally found; the ''Macropædia: Knowledge in Depth'', which presented many articles in great detail; and the ''Propædia: Outline of Knowledge'', the guide to the encyclopedia as a whole with its thematic connections as well as an index to the contributers<ref>https://www.britannica.com/topic/Encyclopaedia-Britannica-English-language-reference-work/Fifteenth-edition</ref>.  By 2012 it had expanded to 32 volumes.

===''Brockhaus Enzyklopädie''===

===''[[Brockhaus Enzyklopädie]]''===

[[File:Brockhaus1.jpg|right|200px|thumb|''Brockhaus Conversations-Lexikon'', first edition (1796-1808)]]

[[File:Brockhaus1.jpg|right|200px|thumb|''Brockhaus Conversations-Lexikon'', first edition (1796-1808)]]

The ''Brockhaus Conversations-Lexikon'' was published in Leipzig, Germany from 1796 to 1808 in 6 volumes. Parallel to other 18th-century encyclopedias, the scope was expanded beyond that of previous publications, in an effort to be all-encompassing. But the work was not intended for scientific use, but to disseminate the results of research and discoveries in a simple and popular form without excessive detail. This format, in contrast to that of ''Encyclopædia Britannica'', was widely imitated by successive nineteenth-century encyclopedias in Great Britain, the United States, France, Spain, Italy and other countries. Of the encyclopedias that had a certain influence between the end of the eighteenth century and the beginning of the nineteenth, the ''Brockhaus Enzyklopädie'' is perhaps the most similar in form to modern encyclopedias, and would literally be the basis for several works which would follow.

The ''Brockhaus Conversations-Lexikon'' was published in Leipzig, Germany from 1796 to 1808 in 6 volumes. Parallel to other 18th-century encyclopedias, the scope was expanded beyond that of previous publications, in an effort to be all-encompassing. But the work was not intended for scientific use, but to disseminate the results of research and discoveries in a simple and popular form without excessive detail. This format, in contrast to that of ''Encyclopædia Britannica'', was widely imitated by successive nineteenth-century encyclopedias in Great Britain, the United States, France, Spain, Italy and other countries. Of the encyclopedias that had a certain influence between the end of the eighteenth century and the beginning of the nineteenth, the ''Brockhaus Enzyklopädie'' is perhaps the most similar in form to modern encyclopedias, and would literally be the basis for the following works:

====''Chambers' Encyclopedia''====

====''Chambers' Encyclopedia''====

====''[[Encyclopedia Americana]]''====

====''[[Encyclopedia Americana]]''====

German-American lawyer and political scientist Francis Lieber would take the seventh edition of the ''Brockhaus Konversations-Lexikon'' and use it for the 13-volume ''Encyclopedia Americana'' (1820), which would eventually become the second-largest printed universal lexicon in the English language after the ''Encyclopædia Britannica''. As the name implies, it is primarily focused on North America, with coverage of American and Canadian history and geography particularly extensive.

German-American lawyer and political scientist Francis Lieber would take the seventh edition of the ''Brockhaus Conversations-Lexikon'' and use it for the 13-volume ''Encyclopedia Americana'' (1820), which would eventually become the second-largest printed universal lexicon in the English language after the ''Encyclopædia Britannica''. As the name implies, it is primarily focused on North America, with coverage of American and Canadian history and geography particularly extensive.

The 175th-anniversary edition of 2004 contains 45,000 articles with 25 million words and was written with the participation of 6500 authors. It contains 9,000 bibliographies, 150,000 cross-references, over 1,000 tables, 1,200 maps and nearly 4,500 black and white and color photographs. Since 1923, ''The Americana Annual'' has been published as a yearbook to update the set.

The 175th-anniversary edition of 2004 contains 45,000 articles with 25 million words and was written with the participation of 6500 authors. It contains 9,000 bibliographies, 150,000 cross-references, over 1,000 tables, 1,200 maps and nearly 4,500 black and white and color photographs. Since 1923, ''The Americana Annual'' has been published as a yearbook to update the set.