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The discovery of the diaries of 19th-century Englishwoman Anne Lister, who wrote in secret code about her love affairs with women and has been called the first modern lesbian. A landowner and a businesswoman, she defied the conventions of the time and was nicknamed by local people in the Yorkshire town of Halifax where she lived 'Gentleman Jack' because of the way she dressed and acted. Louise Hidalgo has been talking to Helena Whitbread, who discovered Anne Lister's diaries in 1983 and spent five years decoding them. Picture: portrait of Anne Lister, of Shibden Hall, Halifax (credit: Alamy)