On the 15 April 1874, a newly formed collective of artists put their works on show for the first time together. The show, at 35 Boulevard des Capucines, featured the likes of Claude Monet, Pierre-Auguste Renoir, Edgar Degas, Camille Pissarro, Alfred Sisley, Berthe Morisot and Paul Cézanne. The show was a huge success and introduced the world to a groundbreaking new approach to art. Impressionism was born. While the seven artists listed above are the most famous of that original cohort of impressionists, the original show by the Batignolles group, as they were known, featured a group of 31 arti…