History, science, place, design, flavor, and brewing systems in one connected world.
Time Cellar · Timeline
Foundation anchors are sorted chronologically while retaining their original dating precision and interpretation status.
c. 13,700–11,700 cal BP; brewing interpretation around c. 13,000 BP · Contested interpretation
Residue, use-wear, contextual, and experimental evidence from Natufian mortars has been interpreted as cereal-based beer making associated with ritual feasting.
This records an archaeological interpretation of fermented cereal evidence. BEU does not convert it into an uncontested “invention of beer” date or a global first-ever claim.
ca. 1981–1975 BCE · Well-supported anchor
A Middle Kingdom model from the tomb of Meketre depicts a combined bakery and brewery workshop, providing material-culture evidence for ancient Egyptian brewing labor and process imagery.
The date belongs to the model and its archaeological context. The model is evidence of brewing representation and practice, not an origin date for Egyptian beer.
c. 1800 BCE · Contested interpretation
The Sumerian Hymn to Ninkasi was written down in the first half of the second millennium BCE and preserves a literary account connected to beer making.
The hymn is an important brewing text, but BEU does not present it as a literal modern recipe or assume its terminology maps cleanly onto modern process names.
822 CE · Approximate chronology/context
A record associated with Abbot Adalhard of Corbie in 822 CE is commonly cited in specialist beer history as an early documented use of hops in brewing.
BEU records the cited documentary anchor without calling it the first-ever human use of hops in beer; earlier use remains a separate historical question.
23 April 1516 · Well-supported anchor
The Bavarian provision associated with Wilhelm IV was issued at Ingolstadt on 23 April 1516 and specified barley, hops, and water for beer in the cited regulation.
BEU treats this as a specific Bavarian legal event, not as the invention of beer purity, a timeless recipe, or a rule that applied universally across all German territories and eras.
c. 1600 CE · Well-supported anchor
Recent scholarship argues that London brewing had already become highly commercial, capital-intensive, and large-scale by around 1600.
This is a historiographical scale interpretation based on surviving records, not a claim that London uniquely invented industrial brewing at a single date.
c. 1720s CE · Contested interpretation
Porter emerged in London in the early eighteenth century and became associated with expanding urban brewery scale.
BEU explicitly rejects the neat single-inventor “Harwood invented porter in 1722 from three threads” story as established fact; the origin narrative is historiographically disputed.
1812 · Well-supported anchor
Munich tourism history describes a 1812 decree allowing drink service at beer gardens while restricting food sales, part of the foodway context behind today's bring-your-own-food tradition.
This is a hospitality/foodway historical anchor as summarized by Munich tourism; it is not a complete legal history of Bavarian hospitality law.
1876 CE · Well-supported anchor
Louis Pasteur published Études sur la bière in 1876, applying microbiological ideas to beer fermentation, spoilage, and brewery practice.
The event records publication and its beer-science context. It does not claim Pasteur discovered fermentation or single-handedly created modern brewing science.
17 January 1920 · Well-supported anchor
National Prohibition took effect in the United States in January 1920, banning manufacture, sale, and transportation of intoxicating beverages under the federal regime.
This event is U.S.-specific and summarizes the federal prohibition regime; state and local legal histories were more complex.
5 December 1933 · Well-supported anchor
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.
This event marks federal constitutional repeal; it does not imply identical alcohol rules across U.S. states after repeal.
7 December 1978 · Well-supported anchor
Charlie Papazian and Charlie Matzen formed the American Homebrewers Association in Boulder in December 1978 with the first issue of Zymurgy.
The event is an institutional U.S. homebrew anchor; it does not by itself define the global beginning of craft brewing or homebrewing.
Signed 14 October 1978; effective 1 February 1979 · Well-supported anchor
President Jimmy Carter signed H.R. 1337 on 14 October 1978; the home-beer federal tax exemption took effect on 1 February 1979.
This is a U.S. federal tax/legalization anchor. State law remained separate, and all-state legality was not achieved until later.