
thumb|right|1814 map of Persia during the Qajar dynasty, with [[scale bars in the bottom left corner for both British Statute Miles and "Persian Farsangs or Parasangs"]]
thumb|right|1814 map of Persia during the Qajar dynasty, with [[scale bars in the bottom left corner for both British Statute Miles and "Persian Farsangs or Parasangs"]]
The parasang (), also known as a farsakh (), is a historical Iranian unit of walking distance, the length of which varied according to terrain and speed of travel. The European equivalent is the league. In modern terms the distance is about 3 or 3½ miles (6 km).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).