2023
November 6-10: 20th World-Wide Bebras Week (November 13-17 is the extension week).
May 13-18: 19th International Bebras Task Workshop in Hurgada, Egypt.
2022
November 7-11: 19th World-Wide Bebras Week (November 14-18 is the extension week).
May 16-20: 18th International Bebras Task Workshop in North Macedonia.
2021
November 8-12: 18th World-Wide Bebras Week (November 15-19 is the extension week).
May 17-21: 17th International Bebras Task Workshop in Lithuania, Druskininkai.
2020
November 9-13: 17th World-Wide Bebras Week (November 16-20 is the extension week).
May 18-21: 16th International Bebras Task Workshop in Daejeon, South Korea.
2019
November 11-15: 16th World-Wide Bebras Week (Countries can start doing the challenge also the week before).
May 13-17: 15th International Bebras Task Workshop in Balatonkenese, Hungary.
2018
November 12-16: 15th World-Wide Bebras Week (Countries can start doing the challenge also the week before).
May 7 – 11: 14th International Bebras Task Workshop in Protaras, Cyprus.
2017
November 13-17: 14th World-Wide Bebras Week (Countries can start doing the challenge also the week before).
May 29 – June 2: 13th International Bebras Task Workshop in Brescia, Italy.
2016
November 7–11: 13th World-Wide Bebras Week.
May 23 – 27: 12th International Bebras Task Workshop in Bodrum, Turkey.
March 17-21: Workshop on the Bebras Lodge development in Lithuania, Druskininkai.
2015
November 9–13: 12th World-Wide Bebras Week
May 25 – 29: 11th International Bebras Task Workshop in St. Pölten, Austria.
2014
November 10–14: 11th World-Wide Bebras Week
June 01 – 06: 10th International Bebras Task Workshop in Vilnius and Druskininkai, Lithuania.
2013
November 11–15: 10th World-Wide Bebras Week
June 27 – July 01: 9th International Bebras Task Workshop in Torun, Poland
2012
November 12–16: World-Wide Bebras Week with contests in 21 countries
May 29 – June 03: 8th International Bebras Task Workshop in Druskininkai, Lithuania
2011
November 07–11: World-Wide Bebras Week with contests in 17 countries
May 10–15: 7th International Bebras Task Workshop in Druskininkai, Lithuania
2010
November 08–12: World-Wide Bebras Week with contests in 13 countries
May 19–22: 6th International Bebras Task Workshop in Dagstuhl, Germany
January 13: Bebras Workshop at ISSEP 2010 in Zurich, Switzerland
2009
November 09–13: World-Wide Bebras Week with contests in 11 countries
May 13–17: 5th International Bebras Task Workshop in Pasvalys, Lithuania.
March 13–15: 2nd International Bebras Board Meeting in Berlin, Germany
2008
November 10–14: World-Wide Bebras Week with contests in 10 countries
June 28–30: 4th International Bebras Task Workshop in Torún, Poland
2007
November 05–09: World-Wide Bebras Week with contests in 8 countries
October 13–14: 1st International Bebras Board Meeting in Potsdam, Germany
May 02–06: 3rd International Bebras Task Workshop in Pasvalys, Lithuania
2006
October 25–27: International Bebras Contest in 4 countries (Lithuania, Estonia, Poland, and The Netherlands)
June 21–25: 2nd International Bebras Task Workshop in Pasvalys, Lithuania
2005
May 05–09: 1st International Bebras Task Workshop in Pasvalys, Lithuania
2004
The first Bebras contest was organized in Lithuania by Prof. Valentina Dagiene
