#OTD in 1914, Austro-Hungarian Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg, were assassinated in Sarajevo. Within 30 days, World War I would begin. (via @marinamaral2)

#OTD in 1914, Austro-Hungarian Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg, were assassinated in Sarajevo. Within 30 days, World War I would begin. (via @marinamaral2)

#OTD in 1914, Austro-Hungarian Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg, were assassinated in Sarajevo. Within 30 days, World War I would begin. (via @marinamaral2)

Landscape painter John Constable was born #otd 1776. This atmospheric view of Stonehenge with a double rainbow overhead was painted in 1836 🌈🌈 (via @britishmuseum)

Today in History: French explorer Jacques Cartier enters the St. Lawrence River, 1534 #otd #tih (via @librarycongress)

Happy 88th birthday to Canadian wildlife painter Robert Bateman, born #otd in 1930. This is “Edge of the Woods – White-tailed Deer; 1976.” @batemancentre (via @ArtsyGirl62)

German Renaissance painter Albrecht Dürer was born #otd in 1471

A.J. Casson was born #otd in 1898. He was a key member of the #GroupofSeven. He joined the group in 1926 at the invitation of Franklin Carmichael. (via @mcacgallery)

This is one of the most elaborate and detailed drawings by Italian Renaissance master Sandro Botticelli – a representation of autumn carries an abundance of flowers and fruits. The artist died #otd in 1510 (via @britishmuseum)

Polish painter Tamara de Lempicka, known for her stylish Art Deco portraits, was born #otd in 1898. This is “Self-Portrait in a Green Bugatti.” (via @ArtsyGirl62)

French painter and sculptor Georges Braque – one of the founding fathers of Cubism – was born #otd in 1882. This is “Piano and Mandola.” @Guggenheim (via @ArtsyGirl62)

In honour of #JEHMacdonald’s birthday (born #otd, 145 years ago 🎂), here’s his masterpiece “Lodge Lake Interior” (c. 1925)—proof that even the co-founder of the Group of Seven painted more than just landscapes! (via @artcaninstitute)

Hokusai died #otd in 1849. His masterpiece ‘Under the Wave off Kanagawa’ from 1831 is better known as ‘The Great Wave’ 🌊 (via @britishmuseum)

American painter Ralph Goings, who was connected with the Photorealism movement, was born #otd in 1928. This is “Chocolate on Top.” (via @ArtsyGirl62)

#otd, 98 years ago, the iconic Group of Seven’s debut exhibition was held at the @agotoronto. This is Lake and Mountains, 1928, by #LawrenHarris (via @artcaninstitute)

Canadian artist and Group of Seven member Franklin Carmichael was born #otd in 1890. This is “Light and Shadow.” @agotoronto (via @ArtsyGirl62)

Leonardo da Vinci died #otd in 1519. He made a number of sketches depicting the infant Christ playing with a reluctant-looking cat – shown here with the Virgin Mary watching on (via @britishmuseum)

Shakespeare was likely born #otd in 1564 and died #otd in 1616. This engraving by Martin Droeshout was completed for the First Folio, published in 1623 – it may be one of the earliest portraits of the Bard (via @britishmuseum)

Novelist Charlotte Brontë was born #otd in 1816. This illustration to Jane Eyre was made by Ethel Gabain in 1922 (via @britishmuseum)

I only went out for a walk, and finally concluded to stay out till sundown, for going out, I found, was really going in. - John Muir, born #otd 180 years ago. (via @RobGMacfarlane)

Happy Birthday to Colombian figurative artist and sculptor Fernando Botero, who was born #otd in 1932. This is Botero’s rendering of “Mona Lisa.” @MuseosBanrep (via @ArtsyGirl62)

Happy birthday Leonardo da Vinci, born #otd in 1452. Painter, sculptor, architect, engineer and owner of the most impeccable handwriting. (via @britishlibrary)

“Red Eiffel Tower” by French artist Robert Delaunay, born #otd in 1885. Delaunay would paint the Eiffel Tower over 30 times in his career. @Guggenheim (via @ArtsyGirl62)

Sunnyside, view of boardwalk, baths in background, #OTD April 12, 1925. From the Globe and Mail fonds, Fonds 1266, Item 4959.
#SwanseaTO (via @Swansea_History @TorontoArchives)

Albert Einstein revealed his special theory of relativity #otd in 1905 (then, an unknown patent expert) https://www.nobelprize.org/nobel_prizes/physics/laureates/1921/einstein-bio.html (via @royalsociety)