- Andrew Torget
- 26:34:00 hour(s):minute(s):second(s)
- United States (Denton)
The longest history lesson is 26 hr 34 min, and was achieved by Andrew Torget (USA) in Denton, Texas, USA, on 24-25 August 2018.
The attempt took place at the University of North Texas. Dr. Torget's lesson covered the history of Texas from its earliest settlements through to the twenty-first century.