Final answer:
The American Revolution contributed to the abolition of slavery by generating debates, empowering African Americans, and inspiring a transatlantic anti-slavery movement.
Step-by-step explanation:
The American Revolution contributed to the abolition of slavery by:
Generating debates about the morality of slavery and its compatibility with the founding ideals of the new nation.
Inspiring African Americans, both slave and free, to question and resist slavery by using the language of natural rights and petitioning for their freedom.
Influencing British abolitionists who offered support to their American counterparts, leading to a transatlantic anti-slavery movement.