Joe Biden will address America’s history of enslavement in a speech on Tuesday at Angola’s National Museum of Slavery, during a trip in which he is also expected to laud recent US investment in the region. Biden’s visit to the museum will take in the 17th-century Capela da Casa Grande, where enslaved people were forcibly baptised before being trafficked across the Atlantic. About 4 million Angolans were enslaved in the Americas from the 16th to the 19th century, most in Brazil. The first African slaves in the US were shipped to Hampton, in the then British colony of Virginia, from