See also Index | Events.
1796
1796Initial publication of the Conversations-Lexicon
1800
19th centuryThirteen editions of Brockhaus published in 19th century
1808
1808Purchase of publishing rights by Brockhaus
1812
Easter 18122nd edition of Brockhaus published
1880
1880First publication of Duden Wörterbuch
1894
189414th edition of the Brockhaus Enzyklopädies published
1902
1902Duden confirmed as standard for spelling
1914
Mid 1914 – Late 1918World War I
1918
1918 – 1933Weimar Republic
1934
1934 – 193515th edition of the Brockhaus Enzyklopädie published
1951
1951First East-German Duden edition published
1955
1955Duden reconfirmed as standard for spelling
1966
1966Name “Brockhaus Enzyklopädie” established
1991
August 1991“Einheitsduden” published
1996
1996German spelling reform
2005
2005 – 200621st edition of the Brockhaus Enzyklopädie published
2011
02.05.2011Duden online launched
2014
2014Print version of Brockhaus discontinued
2015
2015Brockhaus Enzyklopädie published online
2018
09.11.2018Official launch of Compendium heroicum
2020
September 2020Online Compendium on German-Greek Entaglements (ComDeG) launched
October 2020Biographical online lexicon “Eiserner Vorhang” is published
2021
22.02.2021OES Demo encyclopedia, an exemplary OES application, launched
2022
24.02.2022Release OES 2.0
November 2022Germersheimer Übersetzerlexicon UeLEX relaunched
December 2022Compendium heroicum available in English
2023
26.01.2023Key Concept Online is launched
24.04.2023Release OES 2.2
December 2023DATA AFFAIRS launched
2024
05.02.2024Release OES 2.3.0