Théo (Théophile) van Rysselberghe (1862-1926) discovered the pointillist technique when he saw Georges Seurat's La Grande Jatte at the eighth impressionist exhibition in Paris in 1886.
Together with Henry Van de Velde, Georges Lemmen, Xavier Mellery, Willy Schlobach and Alfred William Finch and Anna Boch he "imported" this style to Belgium.
Seurat was invited to the next salon of Les XX in Brussels in 1887.