400 years ago, many European colonists with supple hair went to Africa and subverted the aboriginal empires. After the subjection, local residents succumbed to the colonists. The conquerors found them stocky and submissive. They surmised that those tangible traits made them suitable for strenuous work. So they shipped those Negroes to America in order to supersede animal labor. 来源：考试大 During the 1600s, from African plains to the summits, millions of Negroes tallying the requirements were tied together with strap. Their noses were transfixed and their faces tinted. Then they were jammed into stout ships teeming slaves thrust by sails and shipped to America. While in the ship, they fed on tepid tenuous porridge and stodgy corn. Stripped of all things, their head thumped the deck and their noses tingled while the ship waved. Such bad conditions were not tentative, so they became torpid and tranquil as well as susceptible. Surplus people were thrown into the sea and were submerged by water. As the slavers kept tantalizing them, Even the most temperate man became sullen. Their touchy temperament caused much strife and many ships strayed. 来源：考试大 After they finally surmounted all the difficulties stunting them and subsisted until they reached America, they found themselves suffusing the slaver’s farms to which they were subsidiary. Their stingy superintendents stipulated with them that, their job was temporal and would soon be supplanted by more succinct work. It’s their tact however. Everyday they ate their sustenance when the bell tolled. It was tacit in the synopsis of the contact that they can never be free. Their thrift and torment transcended all that in human history. When their deeds transpired, the colonists’ reputation got tarnished. International organizations sublimated the topic of fighting against slavery and began to tackle the problem.