Only the gods wore sandals in the ancient world. Then the state of your footwear told much about you, with fashion opting for the outrageously impractical.
Feet in social history, from Winslow Homer, Jules Bastien-Lepage, Jules Breton, Bonnard, Schiele, Degas, and others.
Views from a balcony, notably developed by Gustave Caillebotte in 1880, but continued in paintings by Lovis Corinth, and Pierre Bonnard.
Transformation in the late 19th century, shown in paintings by van Gogh, John Singer Sargent, and others.
Dramatic changes in the classrooms of the late 19th century, as education became politicised and paintings resembled photos.