But while some saw the shirtless man rising to his feet while shaking off the broken shackles on his wrists, others perceived him as kneeling before Lincoln, his white emancipator.
Freed black donors paid for the original in Washington; white politician and circus showman Moses Kimball financed the copy in Boston. The inscription on both reads: "A race set free and the country at peace. Lincoln rests from his labours."
More than 12,000 people had signed a petition demanding the statue's removal, and Boston's public arts commission voted unanimously to take it down. The statue was to be placed in storage until the city decides whether to display it in a museum.
The memorial had been on Boston's radar at least since 2018, when it launched a comprehensive review of whether public sculptures, monuments and other artworks reflected the city's diversity and didn't offend communities of colour.
The arts commission said it was paying extra attention to works with "problematic histories".
Last summer, protesters vowed to tear down the original statue in Washington, prompting the National Guard to deploy a detachment to guard it.