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History of Cannabis Legalization

From prohibition to equity-focused legalization, cannabis laws have changed dramatically over the last century. Massachusetts and Boston in particular have led the way in reform and equity. This timeline highlights key milestones that shaped today’s cannabis landscape.

The U.S. government has historically taken diverse actions with cannabis legalization. from prohibition to reform, each era has reshaped how cannabis is understood and regulated.

Massachusetts and Boston have played a leading role in this national movement, from decriminalization to equity-focused legalization. This timeline highlights key milestones and points toward an inevitable future: federal legalization.

Timeline of the History

Cannabis History

Year What Happened:
1900 Early recreational use of marijuana was introduced in the U.S. by Mexican immigrants.
1930s After the Great Depression, alcohol prohibition was lifted to encourage economic growth. Racist attitudes associated with crime, lewd behavior, immorality, and cannabis. 
1937 First federal regulation came to life with The Marijuana Tax Act, prohibiting its recreational use but allowing its medical use.
1950s The Boggs Act and Narcotics Control Act were enacted, setting mandatory sentences for drug-related offenses including marijuana.
1970s Medical use was prohibited after the Controlled Substances Act came into effect classifying cannabis as a Schedule I Drug - the same category as heroin. Later on, possessing marijuana was still illegal but eleven states decriminalized it, and most others reduced their penalties.
1980s The War on Drugs intensified. The "three strikes you're out" policy and other mandatory sentences were re-enacted by President Reagan.
1990s Five states passed laws to allow its medical use - California, Alaska, Washington, Oregon, Main, and DC.
2000 Seven states increase legalization for medical use - Colorado, Nevada, Vermont, Montana, New Mexico, Hawaii and Rhode Island.
2008 Massachusetts voters approve a ballot decriminalizing the possession of small amounts of marijuana. Possession of less than an ounce is now a $100 fine with no criminal record. 
2016 Recreational use was legalized in MA, with nearly 54% voting in favor. 
2017 The Cannabis Control Commission (CCC) is set ip to regulate the legal cannabis industry of the Bay State. 
2018

Applications open up for cannabis licenses in MA and the first retail stores open making it the first state on the East Coast to allow purchase for recreational use. The first state-wide Social Equity Program in the nation is introduced from MA, and the CCC also authorizes the first two independent testing laboratories.

The Farm Bill federally legalized hemp.

2019 Boston passes an Ordinance Establishing Equitable Regulation of the Cannabis Industry. This created the Boston Cannabis Board, the Boston Cannabis Equity Program, and the Boston Equity Fund, making Boston a national model for equity-focused legalization.
2020 Boston's first adult use dispensary officially opens. the State's first Social Equity Business.
2021 The MORE Act was introduced in the House of Representatives. Five more states increased its legalization for recreational use - New York, Montana, Virginia, New Mexico and Connecticut.
2022 Exclusivity periods for both delivery and social consumption licenses apply to equity groups in MA.
2025

Massachusetts passes $8 Billion in gross adult-use sales.

New Social Consumption Regulations Approved.

Projection: The American cannabis market is expected to grow to $41.5 Billion.

 

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