Bare feet as a sign of rural poverty, among irregular peasant volunteer soldiers, and striking miners. But what about the kissing of feet?
The Sack of Troy, Turner, Vesuvius erupting, an unusual Manet maritime, Vallotton, Paul Nash, Monet, Luce, Signac, Stella and more going up in smoke.
Belgium was heavily industrialised: he shows its coal miners, including women, their villages, steel foundries, and more.
Better known for his sculpture, his visit to Seville let him paint women working in the huge tobacco factory there. He also depicted those working in coastal industries.
With the Industrial Revolution, painters started to depict the furnaces and factories which grew rapidly across Europe and North America. This selection runs to 1879.