There is not a specific antonym for diaspora, but the opposite of a diaspora would be the regrouping of a community or the coming together of a community. It could also be a renewal of a specific cultural group or ethnicity coming back together in a sort of revival of their culture.
Yes, enslaved individuals were brought to the British North American colonies and the United States by the African slave trade before it was outlawed in 1808.
<span>The Great Awakening is the name for the powerful religious revival that swept over the colonies beginning in the 1720s. Christian ministers such as George Whitefield and Johnathon Edwards preached in the colonies, drawing huge crowds, The Great Awakening had a huge effect on the way colonists viewed themselves. The Great Awakening caused people to preach for the revival of religious belief. It increased awareness of the importance of religion in people's lives, and caused a religious revival sweep through America.</span>
D. It was built on loyalty
