The Nobel Prize in Physics in 2022 was awarded to Alain Aspect, John F. Clauser, and Anton Zeilinger (shared equally) “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science”. In this talk I will review how entanglement and quantum nonlocality was first introduced, what the Bell inequalities are, how this year's Nobel laureates and others measured their violation, and how this work "pioneered quantum information science".