Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Historic Centre of Mexico City and Xochimilco' has mentioned 'Human' in the following places:
Occurrence Sentence Text Source
The oldest signs of human occupation in the area of Mexico City are those of the "Pexc3xb1on woman" and others found in San Bartolo Atepehuacan (Gustavo A. Madero).
[28] However, recent studies place the age of the Pexc3xb1on woman at 12,700 years old, making her one of the oldest human remains discovered in the Americas.
Floods were not only an inconvenience but also a health hazard, since during flood periods human waste polluted the city's streets.
The chinampas are an exceptional agricultural system, based on the combination of environmental factors and human creativity.