Answer
At UFC 193, Holly Holm captured the Bantamweight championship by defeating Ronda Rousey. This was a major upset, as Rousey had been undefeated and considered one of the best fighters in the world. Holm used her boxing skills to outstrike Rousey and win the fight by a knockout. This victory made Holm a star in the UFC and helped to increase the popularity of women's mixed martial arts.