The 420 Collaboration is an annual campaign to create and improve cannabis-related content at Wikipedia and other Wikimedia projects in a variety of fields, including culture, health, hemp, history, medicine, politics and religion.

The campaign usually runs starting late March through April, and is organized around curated lists of redlinks or at-will article creation and improvement on English Wikipedia (or media contributions to Wikimedia Commons).

New articles

• Executive Order 12564
• Square grouper
• Veterans Cannabis Analysis, Research, and Effectiveness Act
• wikt:legal high
• PHEC-66
• High Hopes (American TV series)
• Pineapple emoji

Improved articles

• Drug-Free Workplace Act of 1988
• List of cannabis-related lists
• German cannabis control bill
• List of slang names for cannabis
• Square Grouper: The Godfathers of Ganja
• Grass Is Greener
• Hempsters: Plant the Seed
• Martha Stewart
• Degenerate Art (film)
• List of 2024 United States cannabis reform proposals
• Bob Snodgrass
• 2024 Florida Amendment 3
• Wanda James
• Cannabis Administration and Opportunity Act
• Pabst Blue Ribbon THC-infused seltzer

De-orphaned articles

• Mahmoud ElSohly

Media

• File:Grass Is Greener title card.png
• File:Square Grouper The Godfathers of Ganja DVD.png
• File:Hempsters Plant the Seed poster.png

• Expand Cannabis_and_sports#Association_football
• Create Cannabis_and_sports#Diving
• Create Cannabis_and_sports#Figure_skating
• Create Cannabis_and_sports#Gymnastics
• Create Cannabis_and_sports#Softball
• Expand Cannabis_and_sports#Swimming
• Expand entries in Category:Cannabis stubs
• De-orphan articles
  • The following have one or two links.
    • Cannabis Science
    • Cannabis use and trauma
    • Deutsche Cannabis
    • Psychedelic treatments for trauma-related disorders
  • The following have zero qualifying links.
    • Cannabis trafficking penalties for juveniles

• --Another Believer _(Talk) 21:01, 1 January 2024 (UTC)[reply]
• ☆ Bri (talk) 22:57, 1 January 2024 (UTC)[reply]
• //Lollipoplollipoplollipop::talk 22:52, 2 January 2024 (UTC)[reply]
• Teluobir (talk) 16:04, 2 February 2024 (UTC)[reply]
• Jamesy0627144 (talk) 22:07, 21 February 2024 (UTC)[reply]

• Wikipedia:WikiProject Cannabis/420 Collaboration/2017
• Wikipedia:WikiProject Cannabis/420 Collaboration/2018
• Wikipedia:WikiProject Cannabis/420 Collaboration/2019
• Wikipedia:WikiProject Cannabis/420 Collaboration/2020
• Wikipedia:WikiProject Cannabis/420 Collaboration/2021
• Wikipedia:WikiProject Cannabis/420 Collaboration/2022
• Wikipedia:WikiProject Cannabis/420 Collaboration/2023