They were first introduced by British and Dutch slave traders. The vast majority of slaves brought to America's shores were brought by British slavers not "Northerners". Read Thomas Jefferson's first draft of the DoI.
The North had slaves before the South....
Jamestown Virginia had the first slaves in North America in 1619 --- a year before the Pilgrims reached Plymouth Rock and 20 years before the first slaves in New England and at the same time Virginia enacted the Black Codes that codified slavery as intergenerational based upon race as opposed to a position of indentured servitude.
I.e. my friend, there were slaves in the "south" before there were even any white people in the north, and it was in the south that the legal and racial framework of the institution was created.
and kept slaves after those in the South were freed.
Name one NORTHERN state that had slaves after those in the South were freed. Just one! And exactly what law freed slaves in the south? Did southerners just suddenly become emancipationists?
The guy has a real point about the depth of the historical myth perpetuated by the Neo-Confederates. Take all the pride you want in being a Southerner, (there are many things to be proud of) but don't rewrite history. It makes you look foolish and makes the south look foolish.
Ah!! Word games. I love it.
Are you saying that Virginia, in 1619, was part of the Confederacy? Is that what we are pretending?
Slavery was nurtured, invested in, and profited from by the Union before there was even such a thing as the Confederacy.(the "south" is a point on a compass, and did exist at Jamestown: the "South" was the Confederacy, and did not exist at Jamestown)
"Name one NORTHERN state that had slaves after those in the South were freed. Just one! And exactly what law freed slaves in the south?"
Pennsylvania. If I'm lieing, does it matter. Would it still matter if you find I'm telling the truth?
Do your own studying. At least, start with Lincoln's Emancipation Proclamation.
Maryland, Kentucky, Missouri, and Delaware.
"When in September 1862, Lincoln issued his preliminary Emancipation Proclamation, it was a military move, giving the South four months to stop rebelling, threatening to emancipate their slaves if they continued to fight, promising to leave slavery untouched in states that came over to the North...."
....
"Thus, when the Emancipation Proclamation was issued January 1, 1863, it declared slaves free in those areas still fighting against the Union (which it listed very carefully) and said nothing about slaves behind Union lines...."
[source --A People's History of the United States - 1492 - Present, by Howard Zinn, page 187]
Link to Emancipation Proclamation ---Emancipation Proclamation
Quote from below Emancipation Proclamation ---"On Jan. 1, 1863, U.S. President Abraham Lincoln declared free all slaves residing in territory in rebellion against the federal government. This Emancipation Proclamation actually freed few people. It did not apply to slaves in border states fighting on the Union side; nor did it affect slaves in southern areas already under Union control. Naturally, the states in rebellion did not act on Lincoln's order."