The first organized opposition to slavery as an institution emerged in the late century.

Eighteenth Century, is the right answer.

Explanation:

Abolitionism was a movement that began in the United States throughout the American Civil War to emancipate slavery in the U.S. It was the first movement that opposed the Atlantic slave trade. The 18th century witnessed the huge shipping of slaves from Africa in the Americas. This was also the time when Georgia incipiently eliminated slavery in its territory and thereon abolition became a part of the First Great Awakening in the Thirteen Colonies of America.

would not cooperate with each other voluntarily.

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation: