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the desire to explore the marine environment, the need for stealthy underwater warfare, and technological advancements in propulsion and materials. -
Wilson changed the nation's economic policies and led the United States into World War I -
Tsar Nicholas II is most famously remembered for being the last emperor of Russia, his stubborn resistance to reform, and his role in the Russian Revolution and subsequent execution of his family -
he is most famous for being a russian mystic and a faith healer who gained significant influance over the imperial family of Tsar Nicholas II -
He was the first head of government of Soviet Russia from 1917 until his death in 1924, and of the Soviet Union from 1922 until his death -
Winston Churchill was an inspirational statesman, writer, orator and leader who led Britain to victory in the Second World War. -
Fascinated by the toy and its mechanics, the brothers hoped to one day build a flying machine big enough to hold them both. -
a key event in the Russian campaign to conquer the Teke tribe of Turkmens, resulted in Russian control over much of modern-day Turkmenistan, nearly completing the Russian conquest of Central Asia -
The Battle of Cer, a key event in the Serbian Campaign of World War I, happened because Austria-Hungary invaded Serbia in August 1914, aiming to crush Serbian resistance and establish an overland link with the Ottoman Empire -
Poison gas, as a weapon, emerged primarily during World War I, as a desperate attempt to break the trench warfare stalemate, with the Germans first using chlorine gas in 1915. -
in a declared war zone around the UK, resulting in the deaths of nearly 1,200 people, including 128 Americans. -
The tank was originally designed as a special weapon to solve an unusual tactical situation: the stalemate of the trenches on the Western Front. -
German General Erich von Falkenhayn aimed to bleed the French white by attacking the fortress city of Verdun, a strategically and symbolically important location, hoping to exhaust French resources and demoralize the French army. -
which aimed to prevent war supplies reaching Germany, ultimately also targeted the civilian population. It had its counterpart in the German attempt to block supplies to the Entente -
Barbed wire came about as a solution to the need for cheap, effective, and quick-to-install fencing in the American West, particularly for ranchers and farmers seeking to enclose property and control livestock