WHAT ALL HAPPENED APRIL TO NOVEMBER 1905
Find out what all happened April to November 1905

Albert Einstein's paper, "Does the Inertia of a Body Depend Upon Its Energy Content?", is published in the journal Annalen der Physik. This paper reveals the relationship between energy and mass. This leads to the mass–energy equivalence formula E = mc². (21. November 1905)

Russo-Japanese War: The Battle of Tsushima ends with the destruction of the Russian Baltic Fleet by Admiral Tōgō Heihachirō and the Imperial Japanese Navy. (28. May 1905)

Norway and Sweden sign the "Karlstad treaty", peacefully dissolving the Union between the two countries. (23. September 1905)

Wilbur Wright pilots Wright Flyer III in a flight of 24 miles in 39 minutes, a world record that stood until 1908. (5. October 1905)

Las Vegas, Nevada, is founded when 110 acres (0.45 km2), in what later would become downtown, are auctioned off. (15. May 1905)

The Supreme Court of the United States decides Lochner v. New York which holds that the "right to free contract" is implicit in the due process clause of the Fourteenth Amendment of the United States Constitution. (17. April 1905)

The Partition of Bengal in India takes place. (16. October 1905)

Prince Carl of Denmark becomes King Haakon VII of Norway. (18. November 1905)

Prince Carl of Denmark arrives in Norway to become King Haakon VII of Norway. (25. November 1905)

Czar Nicholas II of Russia grants Russia's first constitution, creating a legislative assembly. (30. October 1905)

Norway's parliament dissolved its union with Sweden. The vote was confirmed by a national plebiscite on August 13 of that year. (7. June 1905)

Albert Einstein publishes the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity. (30. June 1905)

Norway becomes independent from Sweden. (26. October 1905)

The trial in the Stratton Brothers case begins in London, England; it marks the first time that fingerprint evidence is used to gain a conviction for murder. (5. May 1905)

Irish nationalist Arthur Griffith founds Sinn Féin as a political party with the main aim of establishing a dual monarchy in Ireland. (28. November 1905)

Norway holds a referendum in favor of monarchy over republic. (12. November 1905)

Princess Margaret of Connaught marries Gustaf, Crown Prince of Sweden. (15. June 1905)

Alberta and Saskatchewan join the Canadian confederation. (1. September 1905)

Battleship Potemkin uprising: sailors start a mutiny aboard the battleship Potemkin, denouncing the crimes of autocracy, demanding liberty and an end to war. (27. June 1905)

Russo-Japanese War: peace negotiations begin in Portsmouth, New Hampshire. (10. August 1905)