Archduke Franz Ferdinand of Austria-Hungary was assassinated in Sarajevo on June 28, 1914, by Gavrilo Princip — setting off a chain of alliances that led to war.The Triple Entente — Britain, France, and Russia — formed the core of the Allied Powers in WWI. Italy later joined the Allies in 1915.The Treaty of Versailles was signed on June 28, 1919 — exactly five years after Franz Ferdinand's assassination. It imposed heavy penalties on Germany.WWII in Europe began on September 1, 1939, when Nazi Germany invaded Poland. Britain and France declared war on Germany two days later.Japan attacked Pearl Harbor on December 7, 1941 — President Roosevelt called it 'a date which will live in infamy.' The US entered WWII the next day.D-Day — Operation Overlord — was the largest seaborne invasion in history. Over 156,000 Allied troops landed on five Normandy beaches on June 6, 1944.Adolf Hitler was the Führer of Nazi Germany from 1934 until his death by suicide in his Berlin bunker on April 30, 1945.The US dropped atomic bombs on Hiroshima (August 6) and Nagasaki (August 9), 1945 — Japan surrendered on August 15, ending World War II.Trench warfare defined WWI's Western Front — soldiers on both sides dug hundreds of miles of trenches across France and Belgium, leading to years of bloody stalemate.The Holocaust was the systematic murder of six million Jews — along with millions of Roma, disabled people, and others — by the Nazi regime between 1941 and 1945.Winston Churchill became PM in May 1940 and led Britain through WWII — his speeches rallied the nation during its darkest hours.Blitzkrieg ('lightning war') combined fast-moving tanks, infantry, and air power to overwhelm enemies quickly — Germany used it to conquer Poland, France, and much of Europe.The Battle of Stalingrad (1942–1943) was the bloodiest battle in history — Germany's defeat marked the turning point of the war on the Eastern Front.VE Day — May 8, 1945 — marked the formal end of WWII in Europe after Germany's unconditional surrender. Celebrations erupted across the Allied world.The Armistice was signed at 11 AM on November 11, 1918 — 'the eleventh hour of the eleventh day of the eleventh month' — ending fighting on the Western Front.The RMS Lusitania was torpedoed by a German U-boat on May 7, 1915, killing 1,198 people including 128 Americans — it shifted US public opinion toward entering WWI.The Zimmermann Telegram (January 1917) proposed that Mexico ally with Germany against the US in exchange for territory — its interception helped push America into WWI.The Maginot Line was France's massive defensive fortification — Germany simply went around it by invading through Belgium in 1940, rendering it useless.The Battle of Britain (July–October 1940) was the first major campaign fought entirely by air forces — the RAF's victory prevented a German invasion of England.Operation Barbarossa (June 22, 1941) was the largest military invasion in history — over 3 million German troops attacked the Soviet Union along a 2,900 km front.The Nuremberg Trials (1945–1946) prosecuted 24 major Nazi leaders — they established the precedent that individuals could be held accountable for crimes against humanity.Rosie the Riveter became the iconic symbol of women's wartime labor — millions of women worked in factories, farms, and military support roles during both world wars.The Manhattan Project (1942–1946) employed over 125,000 people and cost nearly $2 billion — it produced the bombs dropped on Hiroshima and Nagasaki.The Battle of Midway (June 1942) saw the US Navy sink four Japanese aircraft carriers — it shifted the balance of power in the Pacific and put Japan on the defensive.The Gallipoli Campaign (1915–1916) resulted in over 500,000 casualties on both sides — it is especially significant in Australian and New Zealand history (ANZAC Day).The Lend-Lease Act (March 1941) allowed the US to supply Britain, the Soviet Union, and other Allies — over $50 billion in materials were shipped before the war ended.The Dunkirk evacuation (May–June 1940) rescued over 338,000 Allied soldiers using military ships and hundreds of civilian boats — Churchill called it a 'miracle of deliverance.'The Battle of the Somme (July–November 1916) saw 57,470 British casualties on the first day alone — it epitomized the horror and futility of WWI trench warfare.The Schlieffen Plan aimed to avoid a two-front war by defeating France in six weeks via Belgium, then pivoting east to Russia — it ultimately failed, leading to trench warfare.FDR, Churchill, and Stalin met at Yalta in February 1945 to plan Europe's post-war reorganization — decisions made there shaped the Cold War for decades.The Nanking Massacre (December 1937) saw Japanese troops kill an estimated 200,000–300,000 Chinese civilians and prisoners of war over six weeks.The Enigma machine encrypted German military communications — Alan Turing and the Bletchley Park team cracked its code, which is estimated to have shortened the war by two years.After the fall of Bataan in April 1942, Japan forced approximately 75,000 American and Filipino POWs to march 65 miles — thousands died from brutality, disease, and starvation.The Atlantic Charter (August 1941) was agreed upon by FDR and Churchill — it laid the groundwork for the United Nations and post-war international cooperation.The Siege of Leningrad (September 1941–January 1944) lasted 872 days — over 1 million civilians died, mostly from starvation, making it one of history's deadliest sieges.The Balfour Declaration (November 1917) was a letter from British Foreign Secretary Arthur Balfour — it had enormous consequences for the Middle East that continue to this day.El Alamein (October–November 1942) was Montgomery's victory over Rommel's Afrika Korps — Churchill said 'Before Alamein we never had a victory. After Alamein we never had a defeat.'The Tripartite Pact (September 1940) formally established the Axis alliance — Germany, Italy, and Japan agreed to mutual military assistance.Operation Market Garden (September 1944) was an ambitious plan to capture bridges in the Netherlands — its failure at Arnhem ('A Bridge Too Far') delayed the Allied advance into Germany.The Potsdam Conference (July–August 1945) was the final wartime summit — Truman revealed the atomic bomb's existence to Stalin, and the leaders divided post-war Germany into occupation zones.You scored 0 out of 40You scored 1 out of 40You scored 2 out of 40You scored 3 out of 40You scored 4 out of 40You scored 5 out of 40You scored 6 out of 40You scored 7 out of 40You scored 8 out of 40You scored 9 out of 40You scored 10 out of 40You scored 11 out of 40You scored 12 out of 40You scored 13 out of 40You scored 14 out of 40You scored 15 out of 40You scored 16 out of 40You scored 17 out of 40You scored 18 out of 40You scored 19 out of 40You scored 20 out of 40You scored 21 out of 40You scored 22 out of 40You scored 23 out of 40You scored 24 out of 40You scored 25 out of 40You scored 26 out of 40You scored 27 out of 40You scored 28 out of 40You scored 29 out of 40You scored 30 out of 40You scored 31 out of 40You scored 32 out of 40You scored 33 out of 40You scored 34 out of 40You scored 35 out of 40You scored 36 out of 40You scored 37 out of 40You scored 38 out of 40You scored 39 out of 40You scored 40 out of 40
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You've zipped through our trivia like a speedy kangaroo on a mission. Your smarts light up Quizday like a dazzling firework show! Keep hopping from one quiz to another, spreading your cleverness and inspiring us all with your know-how. You're a true trivia superstar!您的得分為 $score（共 $count 分）Vous avez obtenu un score de $score sur $countSie haben $score von $count Punkten erreichtHai ottenuto $score su $countあなたは $score 点を獲得しました（$count 点満点）당신은 $score점을 얻었습니다（$count점 만점）Has obtenido $score de $countVocê obteve $score de $count pontosWhat event is widely considered the trigger that started World War I in 1914?
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Two world wars. Millions of lives. Decades of consequences that shaped the modern world. World War I and World War II are the most studied conflicts in human history — but how much do you actually know beyond the basics? This quiz covers everything from the assassination that started it all to the bombs that ended it, from trench warfare to D-Day, from the Treaty of Versailles to the Nuremberg Trials. Some questions are straightforward. Others will challenge even the most dedicated history buffs. Can you score a perfect 40? Let's find out how much you really know!
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Two world wars. Millions of lives. Decades of consequences that shaped the modern world. World War I and World War II are the most studied conflicts in human history — but how much do you actually know beyond the basics? This quiz covers everything from the assassination that started it all to the bombs that ended it, from trench warfare to D-Day, from the Treaty of Versailles to the Nuremberg Trials. Some questions are straightforward. Others will challenge even the most dedicated history buffs. Can you score a perfect 40? Let's find out how much you really know!