Why is this Tudor drama full of swearing?

1536, by Ava Pickett, is set in a wheatfield near Colchester during the final months of Anne Boleyn’s life. Three peasant women, Jane, Mariella and Anna, meet to discuss the latest news as it trickles in from London. When Anne is imprisoned in the Tower, they try to imagine her state of mind. ‘Terrified,’ says

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