- 1977
Peter Madsen's last year at high school. Interpresse's Comic Album Editor
Henning Kure asks him to do the pictures for a planned album series on the Norse gods. Hans Rancke is taken on as text writer, Søren Håkansson as a colourist.
- 1978
The public's first glimpse of the new comic in serialised form in the Danish magazine Billedbladet.
- 1979
Valhalla comic album No. 1, Cry Wolf, is published under the slogan "The old gods are back". Actors from the Viking Plays in neighbouring Frederikssund ravage the streets of Copenhagen disguised as Norse gods. The comic album is
published simultaneously in Danish, Swedish, Norwegian and Icelandic (Godheimar), 100,000 copies in all. This proves to be on the low side and before long new print runs are made.
- 1980
Valhalla 2 - Thor's Wedding is published, with Per Vadmand as co-writer. Valhalla 1 - Cry Wolf is published in a special
edition for use in Danish schools. Both albums published in Dutch.
- 1981
The educator's edition of Cry Wolf receives The Danish School Librarians' Association's
Childrens' Book Prize.
- 1982
Valhalla 3 - Odin's Wager is published. Work begins on the fully animated
feature film Valhalla
- 1986
The animated feature film Valhalla opens. The character Quark is made into a newspaper strip cartoon, the following year even into a comic album series.
Valhalla albums published in Finnish, Indonesian, German and Faroese (Valhøll).
- 1987
The animated feature film Valhalla is awarded the Public's Prize for Best Film for Children and Youth at the Cannes Film Festival
- 1988
Valhalla 4 - The Story of Quark is published.
- 1989
Danish Minister of Cultural Affairs Ole Vig Jensen hands over the "Ping" Prize for 1989 to Peter Madsen. Valhalla 5 - The Journey to Utgard-Loki is published.
- 1990
Valhalla 6 - The Golden apples is published. Valhalla is published in French (with a mute aitch, of course). The first French title is Le rage d´Odin (Odin's Wager).
- 1991
Valhalla 7 - The Serpent in the Abyss is published.
- 1992
Valhalla 8 - Freya's Neclace is published. Freya's Necklace is elected the best foreign comic album of the year in Norway. Peter Madsen
receives The Norwegian Comics Forum's "Sproing" Prize. The Serpent in the Abyss is elected best comic album of the year at Tegneseriemekka ("Comics Mecca Convention"),
Ballerup, Copenhagen.
- 1993
Valhalla 9 - The Big Challenge is published. Peter Madsen colours the album himself.
- 1995
Valhalla is awarded the Swedish Prize "Unghunden" ("The Young Dog"), which is given "with a view to further comics for children and youth in Sweden".
- 1997
Valhalla 10 - The Gifts for the Gods is published. The colourist is Jesper Ejsing.
Twenty years have passed since Henning Kure, Hans Rancke and Peter Madsen first got together to describe the Norse gods in strip form.
- 1998
Valhalla 11 - The Magic Mead is published.
- 1999
Peter Madsen is awarded The SAS Prize for Best Nordic Comic Album (The Magic Mead) at the Raptus Festival in Bergen, Norway.
- 2001
Valhalla 12 - Through Fire and Water is published.
- 2003
Sandrew Metronome Video Denmark publish the animated feature film Valhalla from 1986 on DVD.
- 2005
Valhalla 13 - The Ballad of Balder is published in serialised form from 27 November, 2005 in the Danish daily Jyllands-Posten.
A new coloured page is printed each Sunday until October, 2006.
- 2006
Valhalla 13 - The Ballad of Balder is published in album form in September, 2006.
- 2007
The Danish edition of the 14th Valhalla story, "The Wall", can be read on
the newspaper Jyllandspostens'
website, www.jp.dk from January 5th, 2007 onwards.
Valhalla 14, "The Wall" is published in album form in September, 2007.
- 2008
Valhalla 14, The Wall, recieves the Orla Prize for best comic album, 2008.
"Valhalla's Friends", a tribute album to the Valhalla series, is released on 17 November at a reception held in
The French Book Café in Copenhagen. 29 artists, cartoonists, writers and journalists have contributed with their
best words and lines in a tribute album to Valhalla and its creators. Editor and originator of the project: Thierry Capezzone.
Valhalla 15, "The Sibyl's Visions", is published in serialised form from 23 December, 2008 in the Danish newspaper Weekendavisen.
Two new coloured pages are printed every week until July, 2009.
- 2009
Valhalla 15, "The Sibyl's visions", is published in album form on 8 September, 2009 on the 30th anniversary of the release of Valhalla 1, Cry Wolf.
- 2010
Valhalla : The Complete Saga 1-5 is published in Denmark and Norway.
Valhalla is published in Spain. Book 1 is "The Serpent from the Abyss".
- 2011
The musical "The Ballad of Balder" opens in Viborg Teater. Music by Sigurd Barrett, stage and costume design by Peter Madsen.
Valhalla: The Complete Saga is published in Sweden.
- 2013
The professional remake of the musical "The Ballad of Balder" opens in Folketeatret, Copenhagen after touring Denmark.