Statistics for occurrence #1 of “Rubicon” in book 1, card 183 of M. Annaeus Lucanus, Pharsalia:

... greedier with the seasons; and all trust Was crushed; and many found a boon in war. Caesar has crossed the Alps, his mighty soul Great tumults pondering and the coming shock. Now on the marge of Rubicon , he saw, In face most sorrowful and ghostly guise, His trembling country's image; huge it seemed Through mists of night obscure; and hoary hair Streamed from the lofty front with turrets crowned:...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Rubicon (California, United States) 6 4 0 0 0 user votes
Rubicon (Wisconsin, United States) 18 0 0 0 0 user votes
Rubicon (Arkansas, United States) 2 0 0 0 0 user votes
Rubicon (Idaho, United States) 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.