Mary Shelley's Frankenstein

This is the question that needs to be answered in the essay: Considering the eras we have examined so far the Scientific Revolution, the Age of Enlightenment, the American and French Revolutions, the Industrial Revolution, and the Romantic Era. choose 3 characters from Frankenstein who you think best exemplify each era. The ratio should be one unique character for each era. (MLA citations needed as well)