c. 1942 AD–c. 1944 AD
Industrial penicillin production
Medicine · Science
Collaboration among laboratories, government, and U.S. industry scales penicillin fermentation; by 1944 supply met military needs. This is a manufacturing breakthrough distinct from the 1928 discovery.
Precision, calendar, and review
- Start
- year · approximate
- End
- year · approximate
- Calendar and convention
- Historical-era years; the source calendar is not identified. No conversion of days is assumed.
- Year zero
- The scale goes from 1 BCE to 1 CE without year zero. Changing era names changes labels only.
- Documentary review
- Date not recorded
Reading the date: duration of a process.
Sources
- www.nlm.nih.gov (opens in a new tab)
Source provenance and scope
- Publication date
- 2023-06-15
- What this date describes
- The cited source or edition; it may postdate the historical event.
- Bibliographic date checked
- 2026-09-23
- Date evidence
- Declared in the cited source’s publisher metadata.
The correspondence between this reference and individual claims has not yet been itemized.
This record is an editorial synthesis. Consult the sources to check claims and their limits. Chronological relationships alone do not establish causation.