Why is history open to ongoing and changing interpretations?

Bonus question: according to wikipedia, in chinese philosophy yin and yang "describes how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent." what are some examples from the story that amy tan may have intentionally incorporated elements of yin and yang philosophy into this story? select 2.

What consequences could gen galvez have faced for his major act of bravery?

The two-factor theory of emotion was proposed by