Even though he was known mainly as a painter, from the 1860s onwards, modelling occupied an increasingly important place in the work of Degas, and it became his principal mode of expression by the end of his career.
Except for The Little Fourteen-Year-Old Dancer, exhibited in 1881, his sculptures were unknown during his lifetime.
They were discovered only after he died in 1917. Out of about one hundred and fifty pieces found in his workshop, only seventy-three waxes could be saved. They were handed over to Hébrard who founded twenty-two series in bronze, using the lost wax method, and marked them from A to T. They were exhibited for the first time in 1921. The P series entered the Louvre in 1930.
Modelling gave Degas a new range of experience.
"The older I grow, the more I realise that to achieve [...] a precision so perfect that it gives an impression of life, one has to resort to the three dimensions [...] because there is no place for the more-or-less here" he told the critic Thiebault-Sisson.
If he turned to the same subjects - horses, dances, bathing women - it is because these sculptures were only intended to improve his paintings.
The chronology of these sculptures are very difficult to establish and are based mainly on stylistic criteria, his increasingly free technique and his confident analysis of movement.