Timeline of World War I

Table columns:
Dates
Events

Table rows:
cells: June 28
Assassination of Archduke Franz Ferdinand of Austria, heir to the Austro-Hungarian throne, who was killed in Sarajevo along with his wife Duchess Sophie by Bosnian Serb Gavrilo Princip.[1]
Details
cells: July 5
Austria-Hungary seeks German support for a war against Serbia in case of Russian militarism. Germany gives assurances of support.[2]
cells: July 23
Beginning of the "Black Week". Austria-Hungary sends an ultimatum to Serbia. The Serbian response is seen as satisfactory everywhere but in Vienna.[3]
Details
cells: July 28
Austria-Hungary declares war on Serbia.[4] Russia mobilizes.[5]
Details
cells: The Netherlands declare neutrality.
cells: July 29
Kaiser Wilhelm II of Germany and Czar Nicholas II of Russia communicate via telegram.[6]
cells: July 30
Germany sends Russia an ultimatum.[6]
cells: August 1
Germany declares war on Russia and mobilizes.[7][8][9]
cells: France mobilizes.[7]
cells: Italy declares its neutrality. [10]
cells: Denmark, Sweden and Norway unitedly declare their neutrality.[11]
cells: Germany and the Ottoman Empire sign a secret alliance treaty.[12]
Details
cells: August 2
Germany invades Luxembourg [13].
Details
cells: Skirmish at Joncherey, first military action on the Western Front. [14]
cells: August 2–26
Germany besieges and captures fortified Longwy "the iron gate to Paris" near the Luxembourg border, opening France to mass German invasion.
cells: August 3
Germany declares war on France.[15] Belgium denies permission for German forces to pass through to the French border.[16][17]
cells: Switzerland declares its neutrality and mobilizes for purposes of defense.[18][19]
cells: August 4
Germany invades Belgium[20] to outflank the French army.
Details
cells: Britain protests the violation of Belgian neutrality, guaranteed by the Treaty of London, The German Chancellor replies that the treaty is just a scrap of paper. The United Kingdom declares war on Germany.[21]
Details
cells: The United States declares neutrality.
cells: August 4–16
The Germans besiege and then capture the fortresses of Liège, Belgium.
Details
cells: August 5
German Steamer SS Pfalz surrenders after being fired on by Fort Nepean, south of Melbourne, Australia[22]
cells: Montenegro declares war on Austria-Hungary.[23]
cells: The Ottoman Empire closes the Dardanelles.
cells: August 6
Austria-Hungary declares war on Russia.[24]
cells: Serbia declares war on Germany.[24]
cells: August 7
The British Expeditionary Force arrives in France.[25]
Details
cells: Spain declares "the strictest neutrality."[26][27]
Details
cells: August 7 – September 13
Battle of the Frontiers. The Germans obtain a victory against the British Expeditionary Force and France's Fifth Army.
cells: August 7–10
Battle of Mulhouse, a phase of the Battle of the Frontiers.
cells: August 8
Montenegro declares war on Germany.[24][28]
cells: August 9
The Togoland Campaign begins.
cells: August 11
France declares war on Austria-Hungary.
cells: August 12
The United Kingdom declares war on Austria-Hungary.[24][29]
cells: Battle of Halen, a phase of the Battle of the Frontiers.
cells: August 14–25
Battle of Lorraine, a phase of the Battle of the Frontiers.
cells: August 16–20
The Serbs defeat the Austro-Hungarians at the Battle of Cer.[30]
Details
cells: August 17
The Russian army enters East Prussia. Battle of Stallupönen.
Details
cells: August 20
The Germans attack the Russians in East Prussia, the Battle of Gumbinnen. The attack is a failure in addition to being a deviation from the Schlieffen Plan.[31]
Details
cells: The Germans occupy Brussels.
cells: Battle of Morhange, a phase of the Battle of Lorraine.
cells: Battle of Sarrebourg, a phase of the Battle of Lorraine.
cells: August 21
Battle of Charleroi, a phase of the Battle of the Frontiers.
cells: August 21–23
Battle of the Ardennes, a phase of the Battle of the Frontiers.
cells: August 23
Japan declares war on Germany.[24]
Details
cells: Battle of Mons, a phase of the Battle of the Frontiers.
cells: August 23–30
Battle of Tannenberg: the Russian army undergoes a heavy defeat by the Germans.[32]
Details
cells: August 23 – September 11
Battle of Lemberg. The Russians capture Lviv.
Details
cells: August 23–25
Battle of Kraśnik, a phase of the Battle of Lemberg. The Austro-Hungarian First Army defeats the Russian Fourth Army.[33]
Details
cells: August 24
Action of Elouges.
cells: Battle of the Mortagne, a phase of the Battle of Lorraine.
cells: August 24 – September 7
The Germans besiege and capture the Maubeuge Fortress.
Details
cells: August 24 – September 28
The Allied Great Retreat to the River Marne.
cells: August 25
Japan declares war on Austria-Hungary.[24]
cells: Battle of Tepe: The Kamerun Campaign begins.
cells: August 26
British and French forces conquer Togoland, a German protectorate in West Africa.[34]
Details
cells: Battle of Le Grand Fayt.
cells: August 26–27
Battle of Le Cateau. Allied retreat.
Details
cells: August 26–30
Battle of Gnila Lipa, a phase of the Battle of Lemberg.
cells: August 26 – September 2
Battle of Komarow, part of the Battle of Lemberg.
Details
cells: August 26 - February 18, 1916
Siege of Mora.
cells: August 27
Battle of Étreux.
Details
cells: August 27 – November 7
Battle of Tsingtao: British and Japanese forces capture the German-controlled port of Tsingtao in China.
Details
cells: August 28
The Royal Navy wins the First Battle of Heligoland Bight, North Sea.
Details
cells: Austria-Hungary declares war on Belgium.[24][35]
cells: August 29–30
Battle of Saint Quentin, also known as Battle of Guise. Orderly Allied retreat.
Details
cells: August 29-31
First Battle of Garua.
cells: August 30
New Zealand occupies German Samoa (later Western Samoa).
Details
cells: September 1
Action at Nery
Details
cells: Saint Petersburg renamed Petrograd, removing German words "Burg" and "Sankt".[36]
cells: September 2–11
Austro-Hungarian defeat at the Battle of Rava Russka, a phase of the Battle of Lemberg.
Details
cells: September 4–13
Battle of Grand Couronne, a phase of the Battle of the Frontiers.
cells: September 5–12
First Battle of the Marne. The German advance on Paris is halted, marking the failure of the Schlieffen Plan.[37]
Details
cells: Battle of the Ourcq, a phase of the First Battle of the Marne.
cells: Battle of the Two Morins.
cells: September 6
Battle of Nsanakong.
cells: September 6–12
Battle of the Marshes of Saint-Gond, a phase of the First Battle of the Marne.
cells: Battle of Vitry, a phase of the First Battle of the Marne.
cells: Battle of Revigny, a phase of the First Battle of the Marne.
cells: September 6 – October 4
Battle of Drina.
cells: September 7
Fanning Raid.
cells: September 7–14
First Battle of the Masurian Lakes: The Russian Army of the Neman withdraws from East Prussia with heavy casualties.
Details
cells: September 9
Theobald von Bethmann Hollweg lays out Germany's war aims.
Details
cells: September 11
Battle of Bita Paka.
cells: September 13
Troops from South Africa begin invading German South-West Africa.
Details
cells: September 13–28
The First Battle of the Aisne ends in a substantial draw. The Race to the Sea begins.
Details
cells: September 14
Erich von Falkenhayn replaces Helmuth von Moltke the Younger as German Chief of Staff.
Details
cells: September 14-17
Siege of Toma. Most German forces in New Guinea surrender to the Australians then or over the following year.
cells: September 15
Boer leader Manie Maritz revolts in South Africa.
Details
cells: September 19 – October 11
Battle of Flirey
cells: September 20
Battle of Zanzibar, German naval victory.
cells: September 22
Bombardment of Papeete
cells: German Light Cruiser Emden attacks Madras
Details
cells: September 22–26
First Battle of Picardy.
cells: September 24
The Siege of Przemyśl begins
Details
cells: September 25
Battle of Sandfontein.
cells: September 25–29
First Battle of Albert
Details
cells: September 28 – October 10
The Germans besiege and capture Antwerp, Belgium.
Details
cells: September 29-30
Japan occupies the Marshall Islands.
cells: September 29 – October 31
Battle of the Vistula River, also known as Battle of Warsaw.
Details
cells: October–July 11, 1915
Battle of Rufiji Delta, German cruiser Königsberg destroyed.
cells: October 1–4
First Battle of Arras.
Details
cells: October 9 – November 1
Central powers control Belgrade.
Details
cells: October 10 – November 2
Battle of La Bassee.
cells: October 12 – November 2
First Battle of Messines.
Details
cells: October 13 – November 2
Battle of Armentieres.
cells: October 16–31
Battle of the Yser. French and Belgian forces secure the coastline of Belgium.[38]
Details
cells: October 19 – November 22
The First Battle of Ypres ends the Race to the Sea. The Germans are prevented from reaching Calais and Dunkirk.
Details
cells: October 19 - July 7, 1915
Clashes between German and Portuguese forces in the Angola-Namibia border, without declaration of war.
Details
cells: October 28
Battle of Penang.
cells: October 29
The Ottoman Empire launches a surprise attack on the Russian Black Sea coast
Details
cells: November 1
Russia declares war on the Ottoman Empire.
cells: Battle of Coronel. Von Spee's German cruiser squadron defeats a Royal Navy squadron under Christopher Cradock.[39]
Details
cells: November 2
The United Kingdom begins the naval blockade of Germany.
Details
cells: Serbia declares war on the Ottoman Empire.[24]
cells: November 2–16
Bergmann Offensive, first military engagement in the Caucasus of the First World War.
cells: November 3
Montenegro declares war on the Ottoman Empire.
cells: Battle of Kilimanjaro.
cells: November 3–5
Von Lettow-Vorbeck's German colonial forces defeat the British at the Battle of Tanga, German East Africa.
Details
cells: November 5
France and the United Kingdom[40] declare war on the Ottoman Empire.[24]
cells: November 6
Fao Landing, British and Indians besiege the fortress at Fao.
cells: November 9
Battle of Cocos, northeast Indian Ocean. The Australian cruiser Sydney destroys the German cruiser Emden.[41]
Details
cells: November 11
Sultan Mehmed V declares Jihad on the Allies.[42][43]
Details
cells: November 11–21
Battle of Basra.
Details
cells: November 11 – December 6
Battle of Łódź (also known as Silesian Offensive).
Details
cells: November 13
Battle of El Herri: Worst French defeat in Morocco at the hands of the Zayanes.
cells: November 16 – December 15
Battle of Kolubara, Austro-Hungarians leave Serbia.
cells: November 19
Bolshevik representatives at the State Duma arrested and exiled to Siberia.
cells: December 1–13
Battle of Limanowa.
cells: December 3–9
Battle of Qurna.
cells: December 8
Battle of the Falklands. Von Spee's German cruiser squadron is defeated by the Royal Navy.[44]
Details
cells: December 10
Hill 60 captured by the Germans.
Details
cells: December 14
Ottomans occupy the Persian border town of Qotur as a bridgehead to the Caucasus, but withdraw after their defeat at Sarikamish.
Details
cells: December 16
The German fleet shells Scarborough and Hartlepool, England.[45]
Details
cells: December 18–22
Battle of Givenchy.
cells: December 17 – January 13, 1915
First Battle of Artois.
cells: December 20
Fighting begins at Perthes.
cells: December 20 – 17 March 1915
First Battle of Champagne.
Details
cells: December 22
Fighting begins at Noyon.
Details
cells: December 22 – January 2, 1915
The Russians win the Battle of Sarikamish, Caucasia.[46]
Details
cells: December 24–25
In some sectors of the Western Front, an unofficial Christmas truce is observed between German and British forces.[47]
Details
cells: December 25 – January 18, 1915
Battle of Ardahan.

Questions about this table:
originalText: leader who declared war on russia to support austria hungary
answer: answerTexts: Kaiser Wilhelm II