Indeed they were.
Vermeer lived 1632-1675, Cassatt 1844-1926.
impressionist movement
She worked during the last part of the 19th centure, the period of Impressionism.
Johannes Brahms (1833 - 1897) was one of the leading composers of the Romantic period - a period of music generally seen as lasting between c. 1800 and c. 1910.
Beethoven and Johannes Brahms
Johannes Riedel has written: 'Music of the romantic period' -- subject(s): History and criticism, Music, Romanticism in music
The period of a planet is the time it takes for the planet to complete one orbit around its parent star. This period is typically measured in Earth days or years, depending on the length of the planet's orbit.
For instance the impressionists, as Monet, Renoir, Morisot. Also van Gogh and Gauguin.
Mary Cassatt primarily worked with oil paints, pastels, and printmaking techniques throughout her career. While she is known for her Impressionist style and her focus on the intimate lives of women and children, there is no significant evidence that she used acrylic paints, as they became popular after her main period of work. Cassatt's artistic contributions are celebrated mainly through her mastery of traditional mediums.
Mary Cassatt died on June 14, 1926 at the age of 82.
C Monet, P-A Renoir, A Sisley, C Pissarro, Berthe Morisot, Mary Cassatt, G Caillebotte, E Degas, E Manet (for a short period), T Robinson. All French except the American Robinson. Cassatt, US-born, worked in France.
Gravitation. See the answer to the question concerning Johannes Kepler's accomplishments.
The Printing Press - Johannes Gutenberg