Template:OTD/April 21


 * 1999: Chapter of Digimon Adventure V-Tamer 01 is published in Japan.
 * 2000: Chapter of Digimon Adventure V-Tamer 01 is published in Japan.
 * 2001: Episode of Digimon Adventure 02 premieres in North America.
 * 2001: Chapter of Digimon Adventure V-Tamer 01 is published in Japan.
 * 2002: Episode of Digimon Frontier premieres in Japan.
 * 2002: Digimon Tamers: The Adventurers' Battle is released on DVD in Japan.
 * 2002: Chapter of Digimon Adventure V-Tamer 01 is published in Japan.
 * 2003: Chapter of Digimon Adventure V-Tamer 01 is published in Japan.
 * 2006: Chapter of Digimon Next is published in Japan.
 * 2007: Chapter of Digimon Next is published in Japan.
 * 2008: Episode of Digimon Data Squad premieres in North America.
 * 2010: Chapter of Digimon Xros Wars is published in Japan.
 * 2013: Chapter of Digimon World Re:Digitize Encode is published in Japan.
 * 2014: Chapter of Digimon World Re:Digitize Encode is published in Japan.