The difference between the study of history and the construction of public memory, the American historian Arno Mayer observed, is that “whereas the voice of memory is univocal and uncontested, that of history is polyphonic and open to debate”. Memory, he added, “tends to rigidify over time, while history calls for revision”. When Mayer died earlier this month, his death was barely marked in the media. Yet, in an age in which the clash between history and memory lies at the heart of much political conflict, from culture war debates over statues and slavery to the confrontation between the origin...