What caused many northerners to be more aware of the human cost of slavery

"The Novel Uncle Tom's Cabin"

Explanation:

Harriet Beecher Stowe

In 1851, she began publishing her novel Uncle Tom’s Cabin serially in The National Era, an anti-slavery newspaper published in Washington, DC. The book sold 300,000 copies in the US in the first year of its publication, and an estimated 1,000,000 in the United Kingdom. Except for the Bible, it is estimated that it outsold every other book published in English during the nineteenth century.

The book humanized slavery to its readers. The characters were believable, the incidents neither better nor worse than reported in other sources, and the plot appealing to the tastes of the era. Now when people heard about slaves, they thought of Uncle Tom and Eliza, people about whom they cared.

- Original post from Jim Wayne, B.A. from Duke University (1967)

pepin the short[a] (german: pippin der kurze, french: pépin le bref, c. 714 – 24 september 768) was the king of the franks from 751 until his death. he was the first of the carolingians to become king.[b][2]

the younger son of the frankish prince charles martel and his wife rotrude, pepin's upbringing was distinguished by the ecclesiastical education he had received from the monks of st. denis. succeeding his father as the mayor of the palace in 741, pepin reigned over francia jointly with his elder brother carloman. pepin ruled in neustria, burgundy, and provence, while his brother carloman established himself in austrasia, alemannia and thuringia. the brothers were active in suppressing revolts led by the bavarians, aquitanians, saxons, and the alemanni in the early years of their reign. in 743, they ended the frankish interregnum by choosing childeric iii, who was to be the last merovingian monarch, as figurehead king of the franks.

answer; i believe the two groups were irish immigrants and chinese immigrants;