The encyclopedia Britannica is published in the United States.
Chicago helped publish Compon's Encyclopedia in 1920's
europe
As the world is constantly changing, the World Book Encyclopedia is generally published each year. New editions of the World Book Encyclopedia have been published since 1917, and continue even today in 2013.
Chicago
2000
Chicago IL
encyclopedia
One example of an encyclopedia is "Encyclopædia Britannica", first published in 1768.
2008
According to Wikipedia, the first edition of the World Book Encyclopedia was published in 1917.
That depends on which encyclopedia you mean. Encyclopedia Brittanica is published by a company of the same name. Wikipedia is published/managed by the Wikimedia Foundation, a non-profit organization. Others may be published by large publishing houses or self-published by an organization that exists only to publish that collection.