Anti-slavery factions were groups and movements that opposed the institution of slavery in the United States, advocating for the abolition of slavery and the rights of enslaved people. These factions played a crucial role in shaping public opinion, influencing political debates, and mobilizing efforts towards emancipation. The rise of these factions highlighted the growing sectional conflict between pro-slavery and anti-slavery sentiments, ultimately contributing to the failure of compromises aimed at addressing the contentious issue of slavery.