The business of history is booming

One advantage a headset has over the standing microphone is that the volume of the speaker will not change when he or she moves around. — dpa

The snow queen’s castle was in pieces. In the darkness behind the stage at the Theatre Royal, one of the largest and oldest of London’s West End theatres, the set for the long-running hit musical Frozen had been disassembled to make way for two historians.

Tom Holland and Dominic Sandbrook stood in the ruins of Elsa’s palace, awaiting their cue.