The Evolution of Calpurnia Tate is a 2009 historical young adult novel by Jacqueline Kelly that received a 2010 Newbery Honor Award.

She would much rather swim in the river near her family's pecan plantation just outside the tiny town of Fentress, Texas than learn to cook, knit, and play the piano.

One day, noticing two different types of grasshoppers in the lawn around the house, Callie finally decides to find a copy of Charles Darwin's infamous book The Origin of Species.

Soon, Callie is spending most of her time with Granddaddy, catching specimens of wildlife for his collection—including discovering a new type of hairy vetch—and learning about natural sciences at his side.

As new inventions are presented in Callie's life, she adjusts and evolves, first with the wind machine her brother brings home, then with a marvelous new beverage called Coca-Cola.

As the book ends, the 20th-century dawns, and a rare snow occurs, leaving the reader hopeful that it will bring with it new opportunities for the feisty young Calpurnia.

The women mentioned are Kirkus Reviews wrote "Readers will finish this witty, deftly crafted debut novel rooting for "Callie Vee" and wishing they knew what kind of adult she would become.