Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Cahokia Mounds State Historic Site' has mentioned 'London' in the following places:
Occurrence Sentence Text Source
[5] At the apex of its population, Cahokia may have briefly exceeded contemporaneous London, which at that time was approximately 14,000xe2x80x9318,000.
[27] Moreover, according to some population estimates, the population of 13th-century Cahokia was equal to or larger than the population of 13th-century London.