Edward Jenner more lives than the work of any other human". In Jenner’s time, smallpox killed around 10 percent of the population, with the number as high as 20 percent in towns and cities where infection spread more easily. In 1821 he was appointed physician extraordinary to King George IV, and was also made mayor of Berkeley and justice of the peace. A member of the Royal Society, in the field of zoology he was the first person to describe the brood parasitism of the cuckoo. In 2002, Jenner was named in the BBC's list of the "100 Greatest Britons". Edward Anthony
Caitlyn Jenner a six-minute film featuring Jenner, called "Caitlyn Jenner's Greatest Victories: A Timeline". In a "20/20" interview with Diane Sawyer in April 2015, Jenner came out as a trans woman, saying that she had dealt with gender dysphoria since her youth and that, "for all intents and purposes, I'm a woman." Jenner cross-dressed for many years and took hormone replacement therapy but stopped after her romance with Kris Kardashian became more serious, leading to marriage in 1992. Jenner recounts having permission to explore her gender identity on her own travels but not when they were coupled, and that not knowing the