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Allied leaders of World War I. The Council of Four (from left to right): David Lloyd George, Vittorio Emanuele Orlando, Georges Clemenceau and Woodrow Wilson in Versailles. Map of the World showing the participants in World War I. Those fighting along with the Allied Powers (at one point or another) are depicted in blue, the Central Powers in ...
The United States tested the first nuclear weapon in July 1945, the Trinity test, with the atomic bombings of Hiroshima and Nagasaki taking place one month later. In August 1945, the first widely distributed account of nuclear energy, the pocketbook The Atomic Age, [ 14 ] was released.
The Allies, the Entente or the Triple Entente was an international military coalition of countries led by France, the United Kingdom, Russia, the United States, Italy, and Japan against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria in World War I (1914–1918). By the end of the first decade of the 20th ...
The Big Four or the Four Nations refer to the four top Allied powers of World War I [ 1 ] and their leaders who met at the Paris Peace Conference in January 1919. The Big Four is also known as the Council of Four. It was composed of Georges Clemenceau of France, David Lloyd George of the United Kingdom, Vittorio Emanuele Orlando of Italy, and ...
History of nuclear weapons. Trinity- Gadget, an implosion-type plutonium device tested on July 16, 1945, by the United States was the first successful nuclear weapon ever created. It yielded approximately 25 kilotons of TNT. Building on major scientific breakthroughs made during the 1930s, the United Kingdom began the world's first nuclear ...
Karl von Einem − Commander of the 3rd Army (1914–1919) Alexander von Kluck - Commander of the 1st Army (1914–1915) and fought at the Battle of Mons, Le Cateau and Marne. Karl von Bülow - Commander of the 2nd Army at the Battle of Liège and Siege of Namur and was blamed for the failure of capturing Paris in 1914.
1941 – June – President Roosevelt forms the Office of Scientific Research and Development under Vannevar Bush. 1941 – June 15 – The MAUD Committee approves a report that a uranium bomb could be built. 1941 – June 22 – Operation Barbarossa, the 1941 German invasion of the Soviet Union, begins.
The Central Powers, also known as the Central Empires, [1][notes 1] were one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and Bulgaria; this was also known as the Quadruple Alliance.[2][notes 2] The Central Powers' origin was the alliance of Germany ...