c. 1720s CE
Porter emerges in early-18th-century London
Porter emerged in London in the early eighteenth century and became associated with expanding urban brewery scale.
style or market emergenceContested interpretation
Time Cellar · industrial scientific
Industrial & Scientific Brewing
A lens for the expansion of brewing scale, standardized measurement, fermentation science, and industrial production.
Periodization
A navigation era, not a universal boundary
This is a thematic navigation era spanning uneven regional transitions rather than a single industrialization date.
Chronology
c. 1700–1900 CE · precision: year range · approximate
Anchor events
Evidence currently attached to this era
Future BEU generations can add hundreds of events without changing the era identity.
1876 CE
Pasteur publishes Études sur la bière
Louis Pasteur published Études sur la bière in 1876, applying microbiological ideas to beer fermentation, spoilage, and brewery practice.
scientific publicationWell-supported anchor