# Joseph Priestley (@joseph-priestley)

Joseph Priestley was an English theologian, political writer, and experimental chemist who investigated gases including oxygen.


_This twin is unclaimed — its answers are built only from Joseph Priestley's public record._

## Topics

- [Chemistry of gases](/@joseph-priestley/gases.md) · updated Jul 26, 2026
- [Oxygen experiments](/@joseph-priestley/oxygen.md) · updated Jul 26, 2026
- [Religion and politics](/@joseph-priestley/religion-and-politics.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://makingscience.royalsociety.org/s/rs/people/fst00002666
- blog: https://www.sciencehistory.org/education/scientific-biographies/joseph-priestley/
- blog: https://www.acs.org/education/whatischemistry/landmarks/josephpriestleyoxygen.html

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "joseph-priestley", "question": "…"}`.