Premise: The End Tour was the farewell tour of the heavy metal band Black Sabbath, featuring founding members Ozzy Osbourne, Tony Iommi and Geezer Butler. The tour concluded Sabbath's 40+ year career. The final show was February 4, 2017, in their home city of Birmingham, UK.
Hypothesis: Some bands that come from places like Birmingham, UK have had careers that have lasted longer than others, some even extending beyond 2, 3, or 4 sets of ten years.