Recreational Marijuana Use Legalized in CO

2024 Guides - Turning Points in History
Research Guide Image
A single green marijuana leaf with attached bud

Getting Started

Begin your research by brainstorming keywords - the words and phrases you’ll use to search for books, articles, websites, government documents, and other resources. These may include names of people and places or historical concepts like eras and movements. A librarian can suggest “subject headings” to find the most relevant resources.

Example Keywords & Catalog Subject Headings

Marijuana legalization
Colorado drug legalization
Recreational marijuana
Medical marijuana
Weed
Cannabis

Genealogy, African American and Western History Resources

The Western History & Genealogy department focuses on Colorado and the West and features many primary source materials.  

The Blair Caldwell African American Research Library collections focus on African American history and culture in Colorado and the West, and also feature many primary source collections. 

Items from these two departments do not check out and are available to see at the Central Library when we are open. Western History and Blair-Caldwell staff are available to assist by phone and email and can provide scans of collection items for your project. To contact these two departments, email history@denverlibrary.org or askblaircaldwell@denverlibrary.org and include "National History Day" in your subject line. You may also call 720-865-1821.

Database/Online Resources

Library databases are online collections of information, organized for research. Databases contain articles, eBooks, images, maps, primary sources and more. If you don’t have a library card, register online for immediate access to these resources. The following recommended databases are available on our Research and Teen Social Studies pages.

U.S. History (Gale)

Provides a complete overview of our nation’s past that covers the most-studied events, decades, conflicts, wars, political and cultural movements, and people from reference sources, full-text magazines, academic journals, news articles, primary source documents, images, videos, audio files and links to vetted web sites.

Available with library card

Prospector: Materials from Other Colorado and Wyoming Libraries

​​As a Denver Public Library customer, you can also borrow materials from other libraries in Colorado and Wyoming. Use Prospector to request materials that DPL does not own.

Internet Sources

Before using information you find on the internet for assignments and research, it is important to establish that the information comes from a reliable and appropriate source. The following websites, from government, academic and nonprofit organizations, have been evaluated for authority, accuracy, content and currency.

Colorado State website with a wealth of resources including those about legal marijuana use, health effects, responsible use, hemp, the environmental impact and more.
A report and summary published by the Colorado Division of Criminal Justice’s Office of Research and Statistics has published the latest “Impacts on Marijuana Legalization in Colorado” report, which presents data on marijuana-related topics including crime, impaired driving, hospitalizations, ER visits, usage rates, effects on youth, and more.
Published in March of 2023, this publication provides an overview of marijuana laws in Colorado as well as marijuana licensing, marijuana in the state budget, regulations, federal law and jurisdictional issues, and additional resources
This government department's website includes information, laws, statistics, research, retail and licensing information, and health information on marijuana.
Pew Research Center asked about public views on the legal status of marijuana. For this analysis, they surveyed 5,098 adults from Oct. 10-16, 2022. Everyone who took part in this survey is a member of the Center’s American Trends Panel (ATP), an online survey panel that is recruited through national, random sampling of residential addresses. This way nearly all U.S. adults have a chance of selection. The survey is weighted to be representative of the U.S. adult population by gender, race, ethnicity, partisan affiliation, education and other categories

Contact the Reference Services department for help with your research project