At age 45:
Andre Marie Ampere, a French physicist, discovered the rules relating magnetic fields and electric currents.
George Foreman recaptured the heavyweight championship with a 10th round knockout, becoming the oldest person ever to win the heavyweight championship.
John Vida quit a 3-pack-a-day smoking habit. As of six years later, he hasn’t had a single drag off a cigarette or any other smoking utensil.
Cora Judd overcame a debilitating, lifelong aversion to math by taking three semesters of math classes at the local community college.