Year 1891 (MDCCCXCI) was a common year starting on Thursday (link will display the full calendar) of the Gregorian calendar and a common year starting on Tuesday of the 12-day slower Julian calendar.

Claude Monet (French pronunciation: [klod mɔnɛ/mɔne]) (14 November 1840 – 5 December 1926) was a founder of French impressionist painting, and the most consistent and prolific practitioner of the movement's philosophy of expressing one's perceptions before nature, especially as applied to plein-air landscape painting. The term Impressionism is derived from the title of his painting Impression, Sunrise (Impression, soleil levant).

Claude Monet was born on 14 November 1840 on the 5th floor of 45 rue Laffitte, in the 9th arrondissement of Paris. He was the second son of Claude Adolphe Monet and Louise Justine Aubrée Monet, both of them second-generation Parisians. On 20 May 1841, he was baptized in the local parish church, Notre-Dame-de-Lorette, as Oscar-Claude, but his parents called him simply Oscar. In 1845, his family moved to Le Havre in Normandy. His father wanted him to go into the family grocery business, but Monet wanted to become an artist. His mother was a singer.

On 1 April 1851, Monet entered Le Havre secondary school of the arts. Locals knew him well for his charcoal caricatures, which he would sell for ten to twenty francs. Monet also undertook his first drawing lessons from Jacques-François Ochard, a former student of Jacques-Louis David. On the beaches of Normandy in about 1856/1857, he met fellow artist Eugène Boudin, who became his mentor and taught him to use oil paints. Boudin taught Monet "en plein air" (outdoor) techniques for painting. Both received the influence of Johan Barthold Jongkind.

Herman Melville (August 1, 1819 – September 28, 1891) was an American novelist, short story writer, essayist, and poet. He is best known for his novel Moby-Dick. His first three books gained much contemporary attention (the first, Typee, becoming a bestseller), and after a fast-blooming literary success in the late 1840s, his popularity declined precipitously in the mid-1850s and never recovered during his lifetime. When he died in 1891, he was almost completely forgotten. It was not until the "Melville Revival" in the early 20th century that his work won recognition, especially Moby-Dick, which was hailed as one of the literary masterpieces of both American and world literature. He was the first writer to have his works collected and published by the Library of America.

Herman Melville was born in New York City on August 1, 1819, the third of eight children of Allan and Maria Gansevoort Melvill. After her husband Allan died (& between 1832 & 1834), Maria added an "e" to the family surname — seemingly at the behest of Melville's brother Gansevoort. Part of a well-established and colorful Boston family, Melville's father spent a good deal of time abroad as a commission merchant and an importer of French dry goods. The author's paternal grandfather, Major Thomas Melvill, an honored participant of the Boston Tea Party who refused to change the style of his clothing or manners to fit the times, was depicted in Oliver Wendell Holmes's poem "The Last Leaf". Herman visited him in Boston, and his father turned to him in his frequent times of financial need.