John Ma is Professor of Classics at Columbia University. His books include ‘Statues and Cities: Honorific Portraits and Civic Identity in the Hellenistic World’.
The Met shows how much cities between Rome and Parthia had in common – and how devastating recent archaeological losses are
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Objects that leave Earth may reach astronomical prices on their return – but there are other reasons for sending art into space
Painted in around 1625, the Penitent Mary Magdalene inspired a host of copies before disappearing. Now, it has resurfaced in a private collection