1844 Born in Pittsburgh (then Allegheny City), the daughter of a banker.
1860 Attends classes at the Pennsylvania Academy of Fine Arts in Philadelphia.
1866 Leaves for Europe, studying in Paris and Rome.
1868 A painting is accepted for exhibition at the Paris Salon.
1870 Exhibits paintings at the Paris Salon. Returns to the United States at the outset of the Franco-Prussian War.
1871 Again in Europe visiting Madrid, Seville, Antwerp, and Rome.
1874 Settles in Paris.
1875 Her work is rejected by the Salon.
1877 Her parents and sister settle in Paris and Mary joins them to live in their spacious apartment. She meets Edgar Degas.
1879 Sponsored by Degas, she exhibits with the Impressionists at their fourth exhibition.
1891 Her first individual exhibition is held at Galerie Durand-Ruel.
1894 Her success enables her to buy the Château de Beaufresne at Le Mesnil- Théribus.
1895 Durand-Ruel mount a retrospective exhibition of her work in Paris and New York.
1904 She is awarded the Légion d’honneur.
1926 Dies in Le Mesnil-Théribus, near Beauvais, France.
1873 Toreador , Chicago, Art Institute
c1875 Young Woman on a Striped Sofa with her Dog, Cambridge MA, Fogg Art Museum
1878 Little Girl in a Blue Armchair, Washington, National Gallery of Art
1878 Portrait of the Artist, New York, Metropolitan Museum of Art
1879 Lydia in a Loge, Wearing a Pearl Necklace, Philadelphia Museum of Art
1880 A Woman in Black at the Opera, Boston, Museum of Fine Arts
1880 Lydia Cassatt, the Artist’s Sister, Paris, Musée du Petit Palais
1880 Autumn (profile of Lydia Cassatt), Paris, Musée du Petit Palais
1880 The Child’s Bath, Los Angeles County Museum of Art
1880–81 The Cup of Tea, New York, Metropolitan Museum
1881 A Woman and Child in the Driving Seat, Philadelphia Museum of Art
1882 Two Young Ladies in a Loge, Washington DC, National Gallery of Art
1880–82 Young Girl in the Garden, Paris, Musée d’Orsay
1885 Lady at the Tea Table, New York, Metropolitan Museum of Art
c1885 The Sisters, Glasgow, Art Gallery and Museum
1886 Young Woman Sewing, Paris, Musée d’Orsay
1886 The Family, Norfolk, Virginia, Chrysler Museum of Art
1892 Young Woman Picking Fruit, Pittsburgh, Carnegie Institute Museum of Art
1893 The Bath, Chicago, Art Institute
1893 The Boating Party, Washington DC , National Gallery of Art
1896 Portrait of Mrs H. O. Havemeyer, Shelburne, Vermont, Shelburne Museum
1900 Young Mother Sewing, New York, Metropolitan Museum