At a time when many cities across the country are debating whether monuments should come down, one is going up in the City of Brotherly Love.

For nearly three years, sculptor Branly Cadet's task has been putting an unknown legacy back together detail by intricate detail -- and casting it in bronze.

"Part of my job as a sculptor is to help not only celebrate, but also acknowledge narratives that may have been lost in the past," Cadet said.

Octavius Valentine Catto's lost narrative began in Philadelphia in the 1850s. A teacher-turned-activist, Catto -- along with Fredrick Douglass -- helped recruit blacks to join the Union Army during the Civil War.