# Opus Majus

> book by Roger Bacon

**Wikidata**: [Q4373704](https://www.wikidata.org/wiki/Q4373704)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Opus_Majus)  
**Source**: https://4ort.xyz/entity/opus-majus


## References

1. A Short History of Astronomy
2. Freebase Data Dumps. 2013