17 January 1920
United States national Prohibition begins
National Prohibition took effect in the United States in January 1920, banning manufacture, sale, and transportation of intoxicating beverages under the federal regime.
History, science, place, design, flavor, and brewing systems in one connected world.
Time Cellar · regulatory
A United States-specific era covering national Prohibition and its repeal.
Periodization
Strictly scoped to United States federal history; it must not be projected onto other jurisdictions.
Chronology
1920–1933 CE · precision: year range · not marked approximate
Anchor events
Future BEU generations can add hundreds of events without changing the era identity.
17 January 1920
National Prohibition took effect in the United States in January 1920, banning manufacture, sale, and transportation of intoxicating beverages under the federal regime.
5 December 1933
The Twenty-first Amendment repealed national Prohibition in the United States on 5 December 1933, after beer had already been legalized earlier that year under federal changes.
ICU / CONNECTED DISCOVERY
These links come from ICU's bounded public recommendation graph. Beer evidence, historical uncertainty, jurisdiction, sensory interpretation and responsible-participation boundaries remain intact.
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