# S. R. Ranganathan (@s-r-ranganathan)

Shiyali Ramamrita Ranganathan ( 12 August 1892 – 27 September 1972) was an Indian librarian and mathematician. Ranganathan is widely known as the “Father of Library Science in India.” His most notable contributions to the field were his five laws of library science and the development of the first major faceted classification system, the colon classification.


_This twin is unclaimed — its answers are built only from S. R. Ranganathan's public record._

## Topics

- [Evidence and Limits](/@s-r-ranganathan/evidence-and-limits.md) · updated Jul 26, 2026
- [Documented Work](/@s-r-ranganathan/documented-work.md) · updated Jul 26, 2026
- [Field and Context](/@s-r-ranganathan/field-and-context.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://id.loc.gov/search/?q=S.%20R.%20Ranganathan&q=cs%3Ahttp%3A%2F%2Fid.loc.gov%2Fauthorities%2Fnames
- blog: https://search.worldcat.org/search?q=S.%20R.%20Ranganathan
- blog: https://www.si.edu/search?edan_q=S.%20R.%20Ranganathan

## 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": "s-r-ranganathan", "question": "…"}`.