I have one Irish line in my family tree. I did not know that the Irish were slaves. All I know of is the (fake) Great Potato Famine Myth. ABC’s blog has the details.
But, are we talking about African slavery? King James II and Charles I also led a continued effort to enslave the Irish. Britain’s famed Oliver Cromwell furthered this practice of dehumanizing one’s next door neighbor.
The Irish slave trade began when James II sold 30,000 Irish prisoners as slaves to the New World. His Proclamation of 1625 required Irish political prisoners be sent overseas and sold to English settlers in the West Indies. By the mid 1600s, the Irish were the main slaves sold to Antigua and Montserrat. At that time, 70% of the total population of Montserrat were Irish slaves.