Statistics for occurrence #1 of “Heliopolis” in book 2, chapter 59 of Herodotus, The Histories:

... Delta, and there is in it a very great temple of Isis, who is Demeter in the Greek language. The third greatest festival is at Saïs in honor of Athena; the fourth is the festival of the sun at Heliopolis , the fifth of Leto at Buto, and the sixth of Ares at Papremis.
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.