Our Nig or Sketches from the Life of a Free Black in a Two-Story White House, North‪.‬

According to Wikipedia: "Harriet E. Wilson (March 15, 1825 – June 28, 1900) is traditionally considered the first female African-American novelist as well as the first African American of any gender to publish a novel on the North American continent. Her novel Our Nig was published in 1859 and rediscovered in 1982.”