Pierre Guillon Issues France's First Slave Apology
His ancestors transported 4,500 enslaved Africans and owned Caribbean plantations.
France historically trafficked 1.3 million enslaved people.
Guillon and Boutrin inaugurated an 18-meter ship mast in Nantes as a humanity beacon.
France has never formally apologized for slavery and abstained from UN slavery resolution.
Guillon aims to pass family history to his grandchildren.
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