June 28th: Assassination of Archduke Ferdinand in Sarajevo

July 28th: Austria-Hungary declares war on Serbia; Great War commences

August 1st: Germany declares war on Russia

August 3rd: Germany declares War on France

August 4th: Germany declares War on Belgium; Britain declares War on Germany

August 7th: British Expeditionary Force (BEF) lands in France

August 10th: France declares War on Austria-Hungary

August 11th: Britain declares War on Austria-Hungary

August 23rd-24th: Battle of Mons

August 25-27: Battle of Le Cateau

September 5-10th: Battle of the Marne

September 15-18th: Battle of the Aisne

September 22nd: Loss of the British cruisers Aboukir, Hogue and Cressy to the U9 in the North Sea

October 9th: Loss of the British cruiser Hawke to the U9 in the North Sea

October 18th-November 30th: Battle of the Yser

October 29th: Beginning of trench warfare on the Western Front; Turkey enters war on German side

October 30th-November 24th: The First Battle of Ypres

November 6th: Britain and France declare War on Turkey

December 8th: Naval Battle of the Falkland Islands

December 25th-31st: Sporadic and spontaneous truces along the British line

1915

January 24th: Battle of Dogger Bank

January 25th-27th: Fighting at La Bassée

February 6th: Fighting at the Cuinchy Brickstacks

February 19th-25th: Naval bombardment of the Dardanelles forts

March 10-14th: Battle of Neuve Chapelle

April 22-May 25th: Second Battle of Ypres

April 25th: Allies land at Gallipolli: Battle of the Beaches

June 16th: Fighting at Hooge

August 6th-21st: Second Allied landings at Gallipolli

August 9th: Fighting at Hooge

September 25th-November 6th: Battles of Loos and Champagne

September 28th: Allies enter Kut

October 6th: Allies arrive in Salonika

October 15th: Britain declares war on Bulgaria

December 3rd: Siege of Kut begins

1916

February 21st-December 18th: Battle of Verdun

April 29th: British troops at Kut surrender to the Turks

May 21st German attack at Souchez

May 31st-June 1st: Battle of Jutland

July 1st-November 13th: Battle of the Somme

September 10th-November 19th: Allied offensive in Salonika

December 3rd: Beginning of British offensive in Mesopotamia

1917

February 23rd-April 5th: German withdrawal to the Hindenburg Line

February 22nd-25th: British recapture Kut

April 6th-20th: Nivelle Offensive

April 9th-May 15th: Battle of Arras (including Vimy Ridge)

May 5th-15th: Allied offensive in Salonika

June 7-8: Battle of Messines

July 31st-November 10th: Third Battle of Ypres (‘Passchendaele’)

November 20th-December 7th: Battle of Cambrai

December 9th: Armistice between Russia and Germany

1918

February 18th: British capture Jericho

March 21st-April 5th: German offensive: Second Battle of the Somme

April 9th-29th: German offensive: Battle of the Lys

May 27th-June 6th: German offensive: Second battle of the Aisne

July 13th: Last Turkish offensive in Palestine

July 15th-18th: Second Battle of the Marne

July 18th-August 5th: Allied Aisne-Marne offensive

September 12-16: Allied offensive against the Bulgarians in Salonika

September 26th: Allied offensive on the Western Front begins

September 29th: Bulgarian Armistice with Allies

October 5th: Hindenburg Line breached by British troops

October 30th: Turkey makes peace

November 3rd: Austria-Hungary makes peace

November 11th: Germany signs Armistice; the end of the Great War

1919

January 4th: Peace conference convened in Paris

June 28th: Treaty of Versailles