This is a historical timeline reference for all of the major real-life events of Mixels; past, present, and future.
For in-universe events, see here.
2012
| Late 2012-Early 2013 | Mixels orignally went into development as Monsters by LEGO. A pilot for Mixels entered production likely around this time and was pitched to Cartoon Network. The series was greenlit. |
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2013
| Early 2013 | Mixels entered production at Cartoon Network Studios. |
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| July 18, 2013 | The first day of San Diego Comic-Con International 2013 was held on this day. Mixels was announced and Flain, Seismo, and Volectro were previewed. |
| September 2013 | The first mix of episodes finished post-production at Hacienda Post. |
| December 23, 2013 | Official pictures of Series 1 are found in a retailer's catalog, along with a general description of the theme and the revelation of the Nixels. |
2014
| January 27, 2014 | Cartoon Network issued a press release on Mixels and the scheduled release date for its shorts, the app Calling All Mixels, and the LEGO sets. |
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| February 1, 2014 | Mixels debuted on Cartoon Network in the Netherlands and Flanders. |
| February 3, 2014 | Mixels debuted on Cartoon Network in Central Eastern European countries. |
| February 6, 2014 | The Flash-based website for Mixels and the Mixels section of the LEGO website was launched internationally. |
| The Mixels TV series made its American debut on the Flash-based website. | |
| February 7, 2014 | Mixels debuted in theaters with The LEGO Movie in the United States. |
| February 12, 2014 | Mixels debuted on Cartoon Network in the United States. |
| February 15, 2014 | Mixels debuted on Cartoon Network in Portugal, the United Kingdom, and India, and on Boing in Spain. |
| February 19, 2014 | Mixels debuted on Boomerang in the United States. |
| March 1, 2014 | LEGO Mixels debuted its first wave of sets internationally. |
| March 7, 2014 | Mixels debuted on Cartoon Network in Japan. |
| March 14, 2014 | Calling All Mixels was released internationally by Cartoon Network Games for iOS devices on the iTunes App Store. |
| April 2, 2014 | Calling All Mixels was released internationally by Cartoon Network Games for Android devices on the Google Play Store. |
| May 2014 | Production on Season 2 of Mixels began at Cartoon Network Studios. |
| May 12, 2014 | The Flash-based website for Mixels was updated to reflect the newly-added tribes. |
| May 19, 2014 | The Mixels section of the LEGO website was updated for Series 2. |
| May 29, 2014 | Calling All Mixels was updated to reflect the newly-added tribes. |
| June 1, 2014 | LEGO Mixels debuted its second wave of sets internationally. |
| July 24, 2014 | The first day of San Diego Comic-Con International 2014 was held on this day. Nurp-Naut, Burnard, and Globert were previewed. |
| July 27, 2014 | A Mixels TV special aired on Cartoon Network in India. |
| August 13, 2014 | The Mixels section of the LEGO website was updated for Series 3. |
| August 18, 2014 | The Flash-based website for Mixels was updated to reflect the newly-added tribes. |
| August 28, 2014 | Calling All Mixels was updated to reflect the newly-added tribes. |
| August 31, 2014 | The half-hour TV special, Mixels: Mixed Up Special, was aired on Cartoon Network in the United States, thus concluding Season 1. |
| September 1, 2014 | LEGO Mixels debuted its third wave of sets internationally. |
| September 6, 2014 | The half-hour TV special, Mixels: Mixed Up Special, was aired on Cartoon Network in Central Eastern European countries, thus concluding Season 1. |
| September 7, 2014 | The half-hour TV special, Mixels: Mixed Up Special, was aired on Cartoon Network in the Netherlands and Flanders, thus concluding Season 1. |
| September 9, 2014 | The half-hour TV special, Mixels: Mixed Up Special, was aired on Cartoon Network in Brazil, thus concluding Season 1. |
| September 20, 2014 | The half-hour TV special, Mixels: Mixed Up Special, was aired on Cartoon Network in the United Kingdom, thus concluding Season 1. |
2015
| January 8, 2015 | The Mixels section of the LEGO website was updated for Series 4. |
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| February 1, 2015 | LEGO Mixels debuted its fourth wave of sets internationally. |
| March 9, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in the United States and Canada. |
| March 13, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in Italy. |
| March 14, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in Hong Kong, South East Asia, Australia, the United Kingdom, Taiwan, South Korea, Japan, and Russian South Eastern European countries. |
| March 16, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in India. |
| March 21, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in the Netherlands and Flanders, Poland, and Portugal, and on Boing in Spain. |
| April 1, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in Latin America and Brazil. |
| April 3, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in the Scandinavian and Nordic region. |
| April 20, 2015 | The half-hour TV special, Mixels: Moon Madness, was aired on Cartoon Network in Africa. |
| May 8, 2015 | The Mixels section of the LEGO website was updated for Series 5. |
| May 20, 2015 | Mixels Rush was released in New Zealand by Cartoon Network Games for iOS devices on the iTunes App Store and for Android on the Google Play Store. |
| May 21, 2015 | Mixels Rush was released internationally by Cartoon Network Games for iOS devices on the iTunes App Store and for Android on the Google Play Store. |
| June 1, 2015 | LEGO Mixels debuted its fifth wave of sets internationally. |
| September 10, 2015 | The Mixels section of the LEGO website was updated for Series 6. |
| September 26, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", was aired on Cartoon Network in the United States. |
| October 1, 2015 | LEGO Mixels debuted its sixth wave of sets internationally. Also, Mixels Rush was updated to reflect the newly-added tribes. |
| October 3, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in the United Kingdom, Ireland, South East Asia, and Taiwan. |
| The half-hour TV special, Mixels: Moon Madness, was aired on Boomerang in Latin America. | |
| October 6, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in the Middle East and North African countries. |
| October 11, 2015 | Official photos of Series 7 and 8 are found on LEGO's server. |
| October 17, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in Poland, and on Boing in Spain. |
| October 18, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in Germany. |
| October 24, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in Central Eastern European and Russian South Eastern European countries. |
| October 25, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in Latin America. |
| November 21, 2015 | The final episode of Mixels second season, "Quest for the Mixamajig", is aired on Cartoon Network in South Africa. |
| November 25, 2015 | The TV special, Mixels: Moon Madness, and the Season 2 episode, "Quest for the Mixamajig," are uploaded in their entirety to Cartoon Network's official YouTube channel in the United States. |
| December 9, 2015 | The first chapter of the Mixels documentary is released. |
| December 11, 2015 | The second chapter of the Mixels documentary is released. |
| December 16, 2015 | The third and fourth chapters of the Mixels documentary are released. |
| December 17, 2015 | The fifth and final chapter of the Mixels documentary is released. |
| Retailer catalog images of Series 7 LEGO sets are released, alongside a teaser of Series 8. |
2016
| January 12, 2016 | The Mixels section of the LEGO website was updated for Series 7. |
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| February 1, 2016 | LEGO Mixels debuted its seventh wave of sets internationally. |
| March 5, 2016 | The third season of Mixels premiered on Cartoon Network in the United States and Canada with the episode, "Every Knight Has Its Day". |
| March 12, 2016 | The third season of Mixels premiered on Cartoon Network in the Philippines with the episode, "Every Knight Has Its Day". The panel "LEGO Group and Cartoon Network: Building Future Fans" was hosted at South by Southwest. |
| March 24, 2016 | The third season of Mixels premiered on Cartoon Network in Latin America and Brazil with the episode, "Every Knight Has Its Day". |
| March 25, 2016 | The third season of Mixels premiered on Cartoon Network in Australia with the episode, "Every Knight Has Its Day". |
| March 26, 2016 | The third season of Mixels premiered on Cartoon Network in Poland, South East Asia, Korea, and Hong Kong with the episode, "Every Knight Has Its Day". |
| March 27, 2016 | The third season of Mixels premiered on Cartoon Network in the Netherlands with the episode, "Every Knight Has Its Day". |
| March 28, 2016 | The third season of Mixels premiered on Cartoon Network in Germany with the episode, "Every Knight Has Its Day". |
| April 2, 2016 | The third season of Mixels premiered on Cartoon Network in Japan with the episode, "Every Knight Has Its Day". |
| April 3, 2016 | The third season of Mixels premiered on Cartoon Network in Turkey with the episode, "Every Knight Has Its Day". |
| April 10, 2016 | The third season of Mixels premiered on Cartoon Network in Portugal with the episode, "Every Knight Has Its Day". |
| April 17, 2016 | The third season of Mixels premiered on Cartoon Network in Scandinavia with the episode, "Every Knight Has Its Day". |
| May 28, 2016 | The third season of Mixels premiered on Cartoon Network in the RSEE with the episode, "Every Knight Has Its Day". |
| June 1, 2016 | LEGO Mixels will debut its eighth wave of sets internationally. The Mixels section of the LEGO website will be updated for Series 8. |
| June 11, 2016 | The third season of Mixels will premiere on Cartoon Network in the United Kingdom with the episode, "Every Knight Has Its Day". |
| October 1, 2016 | LEGO Mixels will debut its ninth wave of sets internationally. |
| TBA 2016 | The second episode of the third season of Mixels will premiere on Cartoon Network in the United States. |