1769 CE
Watt’s improved steam-engine patent
Energy · Technology · Infrastructure
James Watt patented a decisive steam-engine improvement. Its later rotary applications helped bring steam power into factories and transport.
Precision, calendar, and review
- Start
- year · no uncertainty qualifier in this record
- 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: point event.
Sources
- www1.eere.energy.gov (opens in a new tab)
Source provenance and scope
- Publication date
- Pending verification
- Bibliographic date checked
- 2026-09-23
The correspondence between this reference and individual claims has not yet been itemized.
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