Statistics for occurrence #1 of “Heliopolis” in book 2, chapter 7, section 2 of Herodotus, The Histories:

...e of length, not more than two miles, will be found between these two journeys; for the journey from Athens to Pisa is two miles short of two hundred, which is the number of miles between the sea and Heliopolis .
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Heliopolis (Egypt) 22 22 0 0 0 user votes
Heliopolis (Lebanon) 24 0 0 0 0 user votes
Heliopolis (Rio de Janeiro, Brazil) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.