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Susan Morrison hears how Scots of yesteryear squabbled over who looked after their bairns and finds out about their grand ideas of corporate responsibility in Africa which didn't quite work out, and we're also on the lookout for the Romans at sea - where might they have had harbours in what's now modern-day Scotland?

Susan chats to Dr Katie Barclay of Adelaide University about how community care worked or failed to work for illegitimate children in the late 18th century - resulting in the sort of alimony battles we're more used to in the divorce courts. Louise Yeoman heads for Cramond to meet Andrew Tibbs of Durham University who's trying to make sense of how the Romans used the sea (and not just those famous Roman roads) to move their troops. Dr Ben Wilkie from Australia joins us in the studio to talk about his new research on the African Lakes Corporation which operated in what's now modern day Malawi - he's looking at how some Scottish companies with good intentions paved the way for empire and exploitation.