# wolne_lektury

Wolne Lektury (school readings)

## Dataset description
- **Source (upstream):** https://wolnelektury.pl/api/books/
- **Domain:** literature
- **Language:** Polish (pl)
- **License:** `CC-BY-SA-4.0 / Wolna Sztuka 1.3`
- **Created (range):** 1500-01-01, 2024-12-31
- **Added:** 2026-06-15

## Licensing — traceable basis
Wolne Lektury publishes under CC-BY-SA 4.0 or Free Art License; texts are public-domain classics + cleared works.

## Provenance
Pulled from SpeakLeash's public redistribution (`speakleash-ds-pub`, key `wolne_lektury_corpus`) of the upstream source above. SpeakLeash credited as intermediate aggregator; upstream license/attribution preserved.

## Statistics
| documents | characters | tokens (tiktoken proxy) |
|---:|---:|---:|
| 6,141 | 261,892,000 | 103,009,797 |

## Filters applied (build_dynaword.py)
Minimal, per Dynaword guidelines (heavy filtering left to downstream use):
- drop documents < 200 chars: **471**
- drop non-Polish (diacritic ratio): **2**
- exact cross-source dedup (sha1): **5**
- OCR alpha-ratio < 0.70 (OCR sources only): **0**
- read 6,619 → kept 6,141

Token counts are a fast tiktoken (cl100k) proxy (~1% off Llama-3); the canonical
Llama-3 count is computed at release.