"World War I (28 July 1914 – 11 November 1918)..."
A global conflict that lasted from 1914 to 1918 and involved many of the world's major powers. It was sparked by the assassination of Archduke Franz Ferdinand of Austria-Hungary and resulted in the downfall of several empires, the redrawing of national borders, and the loss of millions of lives.
Causes of WWI: The complex set of political and economic reasons that led to the outbreak of World War I in 1914, including imperialism, nationalism, alliances, and the assassination of Archduke Franz Ferdinand.
Major Powers and Alliances: The alliances between major European powers such as Germany, Austria-Hungary, and Italy (Triple Alliance) and France, Russia, and Britain (Triple Entente) that contributed to the intensity of the conflict.
Mobilization: The process by which armies were assembled and prepared for battle, including the sheer scale of mobilization and the impact it had on society and the economy.
The Western Front: The land war fought between Germany and the Allied powers on the Western Front, including the use of trench warfare, chemical weapons, and the extreme brutality of battles like the Battle of the Somme.
The Eastern Front: The land war fought between Russia and the Central powers on the Eastern Front, including military campaigns such as the Brusilov Offensive and the Battle of Tannenberg.
Naval Warfare: The naval war fought between Germany and the British Empire, including the use of new technologies such as submarines and naval tactics such as convoy escort.
The Home Front: The impact of the war on civilian populations, including civilian casualties, war propaganda, and the shift towards total war economies.
U.S. Involvement: The role of the United States in World War I, including the reasons for their entry into the war and their contributions to the Allied war effort.
War End and Consequences: The impact of the end of the war and its consequences, including the Treaty of Versailles, the League of Nations, and the long-term legacies of the conflict on Europe and the world.
Women's roles in the war effort: The role of women in the workforce and military during World War I, including their efforts to gain suffrage rights.
African soldiers and laborers in WWI: Focus on the struggle for independence in Africa through the experiences of African soldiers and laborers who participated in the war.
Propaganda and mass media: Exploration of the pervasive role of propaganda in shaping public opinion and attitudes to the war.
Technology and Innovation: Overview of technological advancements that had significant impacts on the war (e.g. airplanes, tanks, machine guns).
Impact of Warfare on the Environment: The toll that war takes on the environment (e.g. trench warfare, gas attacks, herbicide use).
Political turmoil and revolutions: Impact of the war on the world with various countries going through political turmoil, including the Bolshevik Revolution in Russia, Germany's Weimar Republic, and the aftermath of WW1's impact on Ottoman and Austro-Hungarian empires.
Artists and writers in the war: The creative works of artists and writers during WWI that emerged as responses to the conflicts, including works by the likes of Wilfred Owen, Vera Brittain, Picasso and Kandinsky.
"...two coalitions, the Allied Powers and the Central Powers."
"Fighting took place throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia."
"...when a Bosnian Serb named Gavrilo Princip assassinated Archduke Franz Ferdinand, heir to the Austro-Hungarian throne."
"Austria-Hungary held Serbia responsible, and declared war on 28 July."
"...Russia came to Serbia's defence, and by 4 August, Germany, France and Britain were drawn into the war..."
"German strategy in 1914 was to first defeat France then transfer forces to the Russian front."
"...the Western Front consisted of a continuous line of trenches stretching from the English Channel to Switzerland."
"...neither side could gain a decisive advantage..."
"In early 1917, the United States entered the war on the side of the Allies..."
"...in late 1917, the Bolsheviks seized power in the Russian October Revolution and made peace with the Central Powers in early 1918."
"Germany launched an offensive in the west in March 1918, but despite initial success, it left the German Army exhausted and demoralised."
"A successful Allied counter-offensive later that year caused a collapse of the German frontline."
"By the end of 1918, Bulgaria, the Ottoman Empire, and Austria-Hungary agreed to armistices with the Allies..."
"Kaiser Wilhelm II abdicated on 9 November. Facing revolution at home and with his army on the verge of mutiny..."
"An armistice three days later ended the fighting..."
"The Paris Peace Conference imposed various settlements on the defeated powers, notably the Treaty of Versailles."
"The dissolution of the Russian, German, Austro-Hungarian, and Ottoman Empires resulted in the creation of new independent states, including Poland, Finland, Czechoslovakia, and Yugoslavia."
"World War I was one of the deadliest wars in history and resulted in an estimated 9 million soldiers dead and 23 million wounded, while 5 million civilians died due to military action, hunger, and disease."
"The inability to manage post-war instability contributed to the outbreak of World War II in September 1939." Note: Due to the character limit, I can't provide the full quotes here. However, you can easily find them in the original paragraph.