Key Contributions of Frederick Douglass to Abolitionism

During the mid-19th century, the abolitionist movement in the United States gained momentum through various methods of advocacy and resistance against the institution of slavery. Prominent figures within this movement employed speeches, literature, and activism to inspire public opinion and push for legislative change. One key figure, known for his eloquence and compelling arguments against slavery, published works that significantly influenced public perceptions, including the famous pamphlet entitled 'Appeal to the Coloured Citizens of the World'. This figure also contributed to the founding of the North Star newspaper, which focused on issues related to abolition and the rights of African Americans.

Which of the following abolitionists is primarily known for these contributions?