The year was 1962. It marked the start of Johnny Carson’s 30-year run of hosting NBC’s The Tonight Show. A new car could be purchased for $2,500, and the gas to fill it, on average, cost $0.25 per...

On a Friday morning in early April, students walked into an English class and were pleasantly surprised to find a substitute teacher. The room buzzed. Some students chatted excitedly, others took out their...