Throughout history, several significant figures such as William Wilberforce, Frederick Douglass, Mahatma Gandhi, and Martin Luther King Jr. played prominent roles in anti-slavery movements or the eventual legal abolishment of slavery in particular regions or countries. Moreover, these social reform efforts often involved collective actions by activists, political campaigns, legal challenges, and grassroots movements advocating for human rights and equality. As a result, slavery gradually declined with varying paces through legal abolishment, social reforms, and international initiatives in different nations worldwide.