Mixed martial arts (MMA) timeline
| Ancient Greece | – Pankration | |
| Late 19th century | – Hybrid martial arts | |
| Late 1880s | – Early NHB and Mixed Style contests | |
| 1899 | – Barton-Wright and Bartitsu | |
| Early 1900s | – Merikan contests | |
| 1920s | – Early vale tudo and Gracie Challenge | |
| 1960s and 1970s | – Bruce Lee and Jeet Kune Do | |
| 1970s | – Antonio Inoki and Ishu Kakutōgi Sen | |
| 1985 | – Shooto forms | |
| 1989 | – First professional Shooto event | |
| 1991 | – First Desafio (BJJ vs. Luta Livre) event | |
| 1993 | – Pancrase forms | |
| 1993 | – UFC forms | |
| Mid/Late 1990s | – International Vale Tudo | |
| 1997–2007 | – PRIDE FC and UFC era | |
| 2000 | – New Jersey SACB develops Unified rules | |
| 2001 | – Zuffa buys UFC | |
| 2005 | – The Ultimate Fighter Debuts | |
| 2005 | – US Army begins sanctioning MMA | |
| 2006 | – UFC dominance and international growth | |
| 2006 | – Zuffa buys WFA and WEC | |
| 2006 | – UFC 66 generates over a million PPV buys | |
| 2007 | – Zuffa buys PRIDE FC | |
| 2008 | – EliteXC: Primetime gains 6.5 million peak viewers on CBS | |
| 2009 | – Strikeforce holds 1st major card with female main event | |
| 2011 | – WEC merged with UFC | |
| 2011 | – Zuffa buys Strikeforce |
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