This short video is a great lesson opener on the 1950s and 60s and post-WW2 America. "Ken Kesey's Acid Test Signboard" is the third episode in the NMAH webseries "Founding Fragments." Join host Tory Altman for a behind-the-scenes look at some of our most intriguing and little-known objects.  Hear personal interviews with curators and get a glimpse into non-public spaces at the museum.  This episode focuses on a giant invitation board, created by author Ken Kesey and his gang, the Merry Pranksters. In the late 1950s, the Merry Pranksters would invite friends and strangers to participate in acid test experiments, taking LSD together to see what they could learn about the drug, music, art, food, and more.  One of many episodes available on YouTube.