The year 2019 marks the centenary of the signing of the Franco-Polish convention of September 3, 1919, “relating to emigration and immigration,” which led to a massive influx of Polish workers to France, and more specifically, to the mining region in the country’s north. To commemorate this important event for the territory’s identity, the Musée du Louvre-Lens will hold a large retrospective of 19th-century Polish painting, organized jointly with the National Museum in Warsaw.