Georges Seurat was the pioneer of a revolutionary painting technique known as 'Pointillism' (or Divisionism). Instead of mixing colors on a palette, Seurat applied tiny dots of pure, unmixed color directly to the canvas. When viewed from a distance, the human eye and brain perform 'optical mixing,' blending the dots into a range of tones. His masterpiece, 'A Sunday Afternoon on the Island of La Grande Jatte' (1884), took over two years to complete and consists of millions of individual dots. Seurat was deeply influenced by scientific theories of color and light, believing that this method achieved a greater luminosity and vibration than traditional blending. Although he died young at age 31, his work influenced the development of Neo-Impressionism and paved the way for modern color theory.