John Brown again visits Boston.

Brown stays at the American House. The next day, he meets with so-called Secret Six – Thomas Wentworth Higginson, Samuel Gridley Howe, Theodore Parker, Franklin Sanborn and George Stearns. They agree to support his plan to try to start a rebellion of enslaved people and establish a Utopian community for them in the Allegheny Mountains near Harper’s Ferry. Julia Ward Howe later writes: “In speaking of it, my husband assured me that John Brown’s plan had not been so impossible of realization as it appeared to have been after its failure.”