Prudence Crandall (September 3, 1803 - January 28, 1890), a schoolteacher raised as a Quaker, stirred controversy with her education of African-American girls in Canterbury, Connecticut. Her private school, opened in the fall of 1831, was boycotted when she admitted a 17-year-old African-American female student in the autumn of 1833; resulting in what is widely regarded as the first integrated classroom in the United States.
She is Connecticut's official State Heroine.
Prudence Crandall was born on September 3, 1803 to Pardon and Esther Carpenter Crandall, a Quaker couple in the Hope Valley area in the town of Hopkinton, Rhode Island. At the age of 17, her father decided to move the family to the small town of Canterbury, Connecticut. She attended the Friends' Boarding School in Providence, Rhode Island and later taught in a school for girls in Canterbury. In 1831, she returned to run the newly established Canterbury Female Boarding School, which she purchased with her sister, Almira.