The Portal to Texas History now contains the complete video of Dr. Andrew Torget’s 26 hour, 33 minute attempt to break the Guinness World Record for the world’s longest history lesson. The tour-de-force presentation of Texas history took place at UNT in August 2018 with the help of many UNT Libraries and community volunteers, as well as a team of undaunted students and lifelong learners—most of whom stayed awake for the whole lesson. The event also served as a fund-raiser, earning more than $12,000 in donations for the Portal.

The world record has not yet been confirmed, but while you’re waiting for the Guinness organization to complete its evaluation, you can enjoy the lesson all over again—this time broken into manageable 50 minute segments for easy viewing.