No matter what you call it–cannabis, weed, pot, ganja, bud, herb, or marijuana–this controversial plant’s roots run deep in America. And Henry isn’t shying away from digging up its long and complicated history… from its mysterious origins, to top-secret government programs, to hemp’s importance in colonial times and wartime. Marijuana’s affected the lives of every class of American–from rich businessmen to slaves on the plantation–so prepare to get high on history and let your preconceived notions go up in smoke.