Wikipedia: Legal history of cannabis in the United States

ACLU: Marijuana Legalization Is a Racial Justice Issue

University of Georgia: History of Marijuana Regulation in the United States

Center for American Progress: The Facts on Marijuana Equity and Decriminalization

NIH: Legalization, Decriminalization & Medicinal Use of Cannabis

Vera Institute: Legalizing Marijuana Doesn't Mean It's Legal for Everyone

History.com: Why the US Made Marijuana Illegal

History.com: The Complicated History of Cannabis in the US

University of Chicago: Mexicans and the origins of marijuana prohibition in the United States: a reassessment

The New York Times: Opinion | The Injustice of Marijuana Arrests

UC Law School San Francisco: The Criminalization of Medicinal Marijuana

NACDL: Cannabis Justice Initiative