42 Collaboration 2020
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. Campaigns were held in 2017, 2018, 2019 and 2020. The 2020 campaign ran during April, and was organized around curated lists of redlinks or at-will article creation and improvement on English Wikipedia (or media contributions to Wikimedia Commons).
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These are the results of the 2020 campaign, conducted during the month of April.

New articles

Improved articles

New and improved templates

• {{420 Barnstar}}, added alternate version
• Template:Cannabis
• Template:Cannabis by country

New categories

New media

• 
  File:Shafer Report cover.png
• 
  The cannabis dispensary Kaleafa in Portland, Oregon's Woodstock neighborhood during the coronavirus pandemic, as evidenced by the signage and customers practicing social distancing
• 
  Cannabigerolic acid structural formula
• 
  Arlington Experimental Farm
• 
  Hemp field at Arlington Experimental Farm
• 
  Cannabis shop in Washington state, open during COVID-19 shutdown as an essential business.
• 
  Bulletin board with Oregon Seed Bank offering cannabis seeds

Fair use

Improved media

• File:Map of US state cannabis laws.svg, added Virginia decrim.

New translations

You can use the Wikipedia:Content translation tool to translate a Wikipedia article into another language, including carrying over all formatting. Please note the initial results are rough, so please only use the CTT if you are highly proficient in the target language and can polish the result.

• ka:მომხმარებელი:Goonsquad LCpl Mulvaney/სავარჯიშო native speaker and Admin addressing sourcing

• ---Another Believer _(Talk) 15:20, 14 January 2020 (UTC)
• I will be curating Wikicite data and visualizing it in Scholia. Blue Rasberry (talk) 16:49, 14 January 2020 (UTC)
• ☆ Bri (talk)
• --Jamesy0627144 (talk) 05:40, 21 January 2020 (UTC)
• Going to try and focus on Cannabis strains, maybe more of the legal aspects of various state/country laws and regulations. § DDima 05:36, 24 February 2020 (UTC)
• Howdy I can provide insights into the industry and help correct misconceptions about the industry My current projects are to create pages aligned with media terminology and correct historical inaccuracies. Jzesbaugh (talk) 04:05, 14 March 2020 (UTC)
• Goonsquad LCpl Mulvaney (talk) Sorry I've been busy for a while on personal stuff, been getting back into the game and will aim to pitch in this year, mainly with some translation work and targeting remaining Redlink countries.
• Kingsif (talk) 16:27, 4 April 2020 (UTC) I might do some related films, also looking to improve Pot Farm
• // Lollipoplollipoplollipop :: talk 11:08, 15 April 2020 (UTC)

• Wikipedia:WikiProject Cannabis/420 Collaboration/2017
• Wikipedia:WikiProject Cannabis/420 Collaboration/2018
• Wikipedia:WikiProject Cannabis/420 Collaboration/2019