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One of his large works, “A Sunday Afternoon on the Island of La Grande Jatte,” is his most famous painting. It catches a moment in time. The result is all of Paris out on a stroll - 48 people, 8 boats, 3 dogs, one monkey - and if you can catch it, a butterfly.
Seurat made more than 50 studies before completing the painting that took two years to finish. This painting altered the direction of modern art by initiating an art period known as Neo-impressionism, and it is one of the icons of 19th century painting. You can see it at the Art Institute of Chicago.