Racism is only one of the contributing factors for justifying slavery.
Racial prejudice of the dark skinned Africans by the white skinned Europeans was one of the major causes of the transatlantic slave trade.
This trade was further reinforced by the racist ideology that considered the superiority of whites over the blacks.
According to the UNESCO, the slaves were considered as property that was moveable and had no rights of possession or contract.
The world body reiterates the view that racism was used for legitimising the slave trade and all its horrifying practices.
Race relations in Brazil and the United States indicate that prejudice caused by colour differences was universal and the domination and discrimination of the blacks by the non-blacks can be seen wherever and whenever the non-blacks have the power and incentive to show it. The roots of racism cannot be imputed to the immoral concepts or human nature.
In fact the concept of racism can be traced to the rise of capitalism, and the slave trade.
In the ancient Roman and Greek civilisations where racism and oppression of a racist nature did not exist, slavery did exist and the slavery was justified by even thinkers and philosophers such as Aristotle who said that slavery was both pragmatic and suitable for those in bondage.
And once the black skin ancestry was linked to slavery, racism took on a power of its own and continued unabated even when slavery came to an end.
From all these arguments and counter-arguments, we can state it is not clear whether racism is the result of slavery or .