Bath’s slavery past, an exiled Iraqi and Britain’s first celebs – the week in art

In Bath until May … Alberta Whittle’s C is for Colonial Fantasy, 2017. Photograph: Courtesy of the artist and The Modern Institute/ Toby Webster Ltd., Glasgow

Exhibition of the week

A New Power: Photography and Britain 1800-1850
The very first British photographs and their social and political impacts are exposed to scrutiny.
• Bodleian Library, Oxford, 1 February to 7 May