June 28--Murder of Archduke Ferdinand at Sarajevo.
July 23--Austrian Note to Serbia.
July 28--Austria declares war on Serbia.
Aug. 1--Germany declares war on Russia.
Aug. 3--Germany declares war on France.
Aug. 4--Britain declares war on Germany.
Sept. 9--Turkey denounces the capitulations.
1915.
May 23--Italy declares war on Austria.
Oct. 12--Greek Government refuses to help Serbia.
Oct. 14--Bulgaria enters the war.
1916.
Aug. 27--Roumania enters the war.
Nov. 21--Death of Emperor Francis Joseph of Austria.
Dec. 7--Mr. Lloyd George becomes Prime Minister.
Dec. 12--Germany’s first peace proposal.
Dec. 30--Allies give negative answer.
1917.
Feb. 3--Diplomatic relations between United States and Germany
ruptured.
Mar. 12--Outbreak of Russian Revolution.
Mar. 13--China breaks off relations with Germany.
Mar. 15--Czar Nicholas abdicates.
April 5--United States declares war on Germany.
June 12--King Constantine of Greece abdicates.
Sept. 15--Russia becomes Republic, with Kerensky as Premier.
1918.
Jan. 19--Bolsheviks dissolve Russian Constituent Assembly.
Mar. 2--Treaty of Brest-Litovsk signed.
Sept. 25--Bulgaria seeks armistice.
Oct. 3--Prince Max of Baden appointed German Chancellor. Germany
suggests armistice to President Wilson.
Oct. 30--Turkey surrenders.
Nov. 3--Austria sues for peace.
Nov. 11--Germany signs armistice.
_MILITARY._
1914.
Aug. 16--British Expeditionary Force lands in France.
Aug. 23--Battle of Mons.
Sept. 6--First Battle of the Marne.
Oct. 11--First Battle of Ypres.
1915.
Mar. 10--Battle of Neuve Chapelle.
Aug. 4--Germans capture Warsaw.
Aug. 6--Allies land at Suvla Bay.
Nov. 23--Great Serbian Retreat begins.
Dec. 15.--Sir Douglas Haig made Commander-in-Chief.
1916.
Jan. 8--Gallipoli evacuated.
Feb. 16--Russians capture Erzeroum.
Feb. 21--Battle of Verdun begins.
April 29--Kut surrenders.
May 15--Battle of Vimy Ridge.
June 2--Second Battle of Ypres begins.
July 1--First Battle of the Somme.
Aug. 9--Italians capture Gorizia.
Aug. 29--Hindenburg made Chief of General Staff.
Dec. 1--Allied troops land at the Piræus.
1917.
Feb. 24--Kut recaptured.
Mar. 11--Bagdad occupied by British.
Mar. 17--Bapaume captured.
Mar. 27--Battle of Gaza.
April 9--Vimy Ridge captured.
April 20--French troops cross the Chemins des Dames.
June 7--Messines Ridge captured.
June 29--General Allenby commands in Palestine.
Oct. 24--Italian defeat at Caporetto.
Oct. 31--British capture Beersheba.
Nov. 7--Gaza captured.
Nov. 15--Italian retreat ends.
Nov. 20--Battle of Cambrai.
Dec. 9--British entry into Jerusalem.
1918.
Feb. 21--Jericho captured.
Mar. 21--Great German offensive begins.
Mar. 30--General Foch assumes Chief Command.
June 2--German advance stopped.
July 18--French begin their successful counter-attacks.
July 20--Second Battle of the Marne.
Sept. 2--Drocourt-Queant line broken.
Sept. 12--Americans recapture St. Mihiel Salient.
Sept. 16--Allied offensive in the Balkans begins.
Sept. 21--Franco-Serbian troops reach the Vardar.
Sept. 27--Hindenburg line broken.
Sept. 28--Anglo-Belgian offensive in Flanders begins.
Oct. 10--Le Cateau recaptured.
Oct. 17--Recapture of Ostend, Lille and Douai.
Oct. 26--Fall of Aleppo.
_NAVAL._
1914.
Aug. 28--Battle of Heligoland Bight.
Nov. 1--Battle of Coronel.
Dec. 8--Battle of Falkland Islands.
Dec. 16--Bombardment of Scarborough, Whitby and Hartlepools.
1915.
Jan. 24--Battle of Dogger Bank.
Feb. 13--Germany begins “submarine blockade.”
Feb. 25--Dardanelles Forts attacked.
May 7--Lusitania sunk.
1916.
Mar. 16--Fall of Admiral von Tirpitz.
May 21--Battle of Jutland.
June 5--Lord Kitchener drowned in wreck of H.M.S. _Hampshire_.
Sept. 1--Naval demonstration at Athens by Allies.
Oct. 7--German submarine appeared off coast of United States.
Oct. 26--German attack on Dover Patrol.
Nov. 23--German destroyer attack in Straits of Dover.
Nov. 29--Sir David Beatty succeeds Lord Jellicoe.
1917.
Jan. 22--Destroyer fight off Dutch Coast.
Feb. 1--Germany begins “unrestricted” submarine war.
April 7--Destroyer action off Zeebrugge.
May 15--Austrian raid on drifters in Straits of Otranto.
May 17--First American warships enter European waters.
June 5--Destroyer action off Belgian coast.
Oct. 17--Naval battle in Riga Gulf.
Nov. 2--Naval engagement in the Kattegat.
Nov. 17--Naval engagement off Heligoland.
1918.
Jan. 20--Raid by Goeben and Breslau at Mudros. Breslau sunk.
April 22--Zeebrugge and Ostend Harbours blocked by British Navy.
May 9--H.M.S. _Vindictive_ sunk at entrance to Ostend Harbour.