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July 27. England's appeal to Austria, Servia and Russia to suspend hostilities pending a cooperative mediation conference to which France, Germany and Italy are invited. 

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July 29. France quietly prepares for war and troops concentrate near the frontier.
 
 

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July 30. France prepares for war.

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July 31. Holland and Belgium mobilize to defend their neutrality. 

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July 28. German fleet ordered mobilized. Russian guards placed along the Prussian frontier.

July 29. Kaiser and czar exchange telegrams in a final effort for peace. Meanwhile Germany sends troops to Russian frontier.

July 30. Germany sends ultimatum to Russia, giving her twenty-four hours to explain her intentions in regard to mobilization. German reserve officers of the Guards Army Corps called out.

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July 31. Imperial decree declaring state of war throughout German Empire. 

July 23. Austrian note to Servia, demanding the suppression of Pan-Servianism and the punishment of the assassins.

July 25-Austrian note to Servia saying the latter's reply was unsatisfactory. Ambassador leaves Belgrade.

July 27. Partial mobilization by Austria.

July 28. Austria declares war on Servia and hostilities commence, after Germany and Austria refuse England's invitation to a conference. 

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July 25. Servia concedes all of Austria's demands save that of Austrian participation in the investigation of the murder.

July 27. General mobilization of Servian army,

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July 29. Bombardment of Belgrade begun by Austrians. 

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July 27. Mobilization of five Russian army corps.

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July 29. Russia mobilizes a million and a quarter troops for Austrian frontier.

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July 31. General Russian mobilization ordered following which martial law is declared in Germany, although no mobilization ordered. 

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Aug. 5. President Wilson offers offices for peace between the several warring nations.

Congress votes two and a half million dollar appropriation for the relief of stranded Americans abroad.

Aug. 7. U. S. S. Tennessee leaves with $6,000,000 in gold for Europe for stranded Americans.

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Aug. 4. War declared by England on Germany.

Aug. 5. Kitchener appointed Secretary of State for War.

German cables in the Atlantic cut and communication severed. 

Aug. 2. Germany asks Belgium to allow her troops to cross Belgian territory. Belgium refuses.

Aug. 3. German troops enter Belgium and take possession of the town of Arion. Belgium appeals to Great Britain for aid as one of the guarantors of Belgian neutrality.

Germany violates neutrality pact and seizes Luxemburg, claiming that incursions are to meet the French mobilization on Belgian frontier.

Aug. 4. Germans begin their attack on Liege.

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Aug. 7. First British troops land on French soil.

Germans occupy Liege, although the forts still hold out.

Aug. 10. France declares war on Austria-Hungary.

Aug. 11. Germans penetrate France over the Luxemburg frontier and are engaged at Longwy.

Aug. 13. Belgians repulse Germans near Diest.

Belgians charging Germans with atrocities.

Aug. 18. Germans shell and occupy Tirlemont.

Aug. 20. Brussels abandoned by Belgians, occupied by the Germans.

Aug. 22. German attack on Namur; levy of forty million dollars on Brussels.

Allies compelled to withdraw from Charleroi,

Germans occupy Ghent.

Official protest by Belgium on neutrality violation.

Aug. 24. Fall of Namur announced.

Aug. 25. Louvain destroyed by the Germans.

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Aug. 27. Allies retreat to the Somme. Lille, Roubaix and Valenciennes occupied by the Germans.

Aug. 28. Longwy surrenders to the Germans.

La Fere captured by the Germans.

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Aug. 29. German army corps sent from western to eastern theater of operations. Paris prepares for siege.

Aug. 30. Germans capture Amiens. Allies retreating to the line of the Seine.

Aug. 31. German aeroplane bombs dropped on Paris. 

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Aug. 3. Germany declares war on France and Belgium.

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Aug. 4. Germans occupy three Polish cities.

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Aug. 7. French capture Attkirk, in Alsace.

Aug. 9. French occupy Muelhausen.

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Aug. 11. French fall back in Alsace, abandoning Muelhausen

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Aug. 17. French push on toward Strassburg.

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Aug. 20. French recapture Muelhausen.

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Aug. 27. Tilsit, East Prussia occupied by Russians. 

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Aug. 6. Austria declares war against Russia.

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Aug. 7. Servians occupy Vishegeard, in Bosnia.

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Aug. 25. Austria declares war on Japan.

Russians invading Galicia begin the battle of Lemberg.

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Aug. 28. Austria withdraws from Novibazar.

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Aug. 29. Austria declares war on Belgium. 

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Aug. 4. Servians defeat Austrians near Semendria.

Aug. 5 . Montenegro declares war on Austria.

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Aug. 9. Servia declares war on Germany.

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Aug. 11. Montenegro declares war on Germany.

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Aug. 18. Servians win over Austrians at Shabatz in Servia. 

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Aug. 7. Bombardment of Libau by Germans.

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Aug. 11. Austrians occupy Miechow, in Russian Poland.

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Aug. 17. Austrian advance into Poland checked. 

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Aug. 7. British troops seize Togoland on the gold coast of Africa.

British cruiser Amphion mined and sunk.

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Aug. 15. Japanese ultimatum to Germany.

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Aug. 23. Japan in state of war with Germany.

Aug. 24. Bombardment of Tsingtau by the Japanese.

Aug. 26. Togoland surrenders to Great Britain.

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Aug. 27. Kaiser Wilhelm der Grosse sunk by British cruiser Highflyer.

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Aug. 28. Official declaration of Kiauchau blockade.

British naval victory off Heligoland; five German warships sunk.

Aug. 29. New Zealand force occupies German Samoa. 

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Sept. 5. England France and Russia agree not to treat for peace separately. 

Sept. 3. French Government withdrawn from Paris to Bordeaux.

Sept. 4. Germans cross the River Marne in march south.

Sept. 5. Rheims taken by the Germans.

Battle of the Marne began. Sept. 6. High tide of German Invasion.

Sept. 7. Extreme German right begins he retreat back across the Marne, closely followed by the Allied forces.

Germans occupy Maubeuge.

Sept. 8. Germans occupy Mille, Belgium.

Sept. 10. Germans driven out of Vitry le François, retreating toward the Aisne.

Sept. 11. Germans cross the Aisne and take up entrenched position.

Sept. 12. Allies advance against German entrenchments on the Aisne, opening one of the world's greatest battles.

Sept. 14. Germans driven back as far as Amiens and the Argonne region.

Sept. 15. Rheims occupied by the Allies.

Sept. 16. Germans on defensive from Noyon to Verdun.

Sept. 19. Germans evacuate Termonde, Belgium.

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Sept. 23. French capture Peronne, on German right wing.

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Sept. 25. French bombard and occupy Lines, Dalmatia.

British Indian troops land in Marseilles, France.

Sept. 27. Belgians evacuate Alost. 

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Sept. 3. Russia occupies the city of Lemberg, Galicia.

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Sept. 10. Semlin taken by the Servians.

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Sept. 17. Servians retire from Semlin.

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Sept. 21. Russians bombarding Przemysl.

Sept. 22. Russians capture Jaroslav and invest Przemysl.

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Sept. 25. Montenegrins enter Mostar in Herzegovina.

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Sept . 26. Russian troops occupy city of Przemysl, also Rzeszow. 

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Sept. 11. Turkey ends capitulations. 

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Sept. 25. German army on East Prussian border, after having defeated Rennenkampff, reaches Niemen. 

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Sept. 5. British cruiser Pathfinder blown up by submarine; twohundred and fifty-nine lives lost.

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Sept. 10. German cruiser Emden captures six British steamers off coast of India.

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Sept. 12. Australian force takes Bismarck Archipelago and Kaiser Wilhelm's Land.

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Sept. 17. British occupy Luderitzruckt, German Southwest Africa.

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Sept. 22. German submarine U-9 sinks British cruisers Aboukir, Cressy and Hogue with a total loss of fourteen hundred and twenty-two lives, exclusive of officers.

Sept. 25. Japanese troops occupy Weihsen, in Shantung. 

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Oct. 23. American commission organized in London to save Belgians from starvation. 

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Oct. 13. Revolt in South Africa.

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Oct. 3. Allies repulse German attempt to take Roye; crown prince thrown back in the Argonne.

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Oct. 8. Germans capture Douai.

Oct. 9. Germans capture Antwerp.

Oct. 12. Germans occupy Ghent.

Oct. 13. Germans occupy Lille.

Oct. 14. Allies occupy Ypres.

Oct. 15. Allies advance between Lens and Arras.

Oct. 16. Germans occupy Ostend.

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Oct. 21-31. First Battle of Ypres.

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Oct. 24. Germans unable to progress beyond the Yser.

Oct. 26. Allies continue advance northeast of Ypres. 

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Oct. 3. Complete victory for Russians over Germans at Augustow, East Prussia.

Oct. 6. Russians force German retreat from Wierzbolo-Lyck district in East Prussia. 

Oct. 2. Servians check Austrians ten miles from the Drina on the Bosnian side.

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Oct. 23. Russians in great battle with Austrians along San from Samber to Przemysl.

Russians cross the Vistula. 

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Oct. 29. Assassin of Prince Ferdinand sentenced to twenty years in prison; four accessories to be hanged.

Turkey opens war on Russia. 

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Oct. 17. German troops appear before Warsaw.

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Oct. 24. Ten days' battle before Warsaw ends in German defeat.

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Oct. 30. Russia declares state of war exists with Turkey. 

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Oct. 6. Japanese capture Jaluit Island in the Marshall group.

Oct. 7. Japanese capture Yap Island, in the Carolina group.

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Oct. 17. British cruiser Undaunted sinks four German destroyers off Holland.

Oct. 23. Announcement that German cruiser Karlsruhe has sunk thirteen British merchantmen in the Atlantic.

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Oct. 27. British dreadnought Audacious strikes mine off north coast of Ireland.

Oct. 28. German cruiser Emden sinks Russian cruiser Zhemtchug and the French destroyer Mousquet in harbor of Penang.

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Nov. 5. Great Britain officially announces state of war with Turkey.

Great Britain formally annexes the island of Cyprus.

Beyers and Maritz rebellions in South Africa crushed. 

Nov. 2. Germans evacuate left bank of the Yser.

Nov. 3. Germans fall back from the Yser after suffering losses of 30,000.

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Nov. 10-12. Second Battle of Ypres.

Nov. 11. Germans capture Dixmude.

Nov. 12. Germans driven back of Yser, unable to force back British at Ypres.

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Nov. 19. Germans cross the Meuse; their advance at this point forms the famous salient that has been described as "an arrow aimed at the heart of France." This was the last attempt in force to shatter the Allies' line on the west and marked the beginning of the existing deadlock and the end of the first period of the war.

Trench warfare on the western front was continuous ever since the deadlock began. All through the winter of 1914-1915 there was a constant bombardment all along the line from Switzerland to the North Sea.

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Nov. 8. Russians penetrate into Prussia along the left bank of the Vistula.

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Nov. 17. Germans fall back in East Prussia along whole front between Augsburg and Gumbinnen, advance between Warthe and Vistula.

Nov. 22. Russians capture Gumbinnen, in East Prussia. 

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Nov. 3. Russians occupy further points in western Poland and force passage of the San in Galicia.

Nov. 4. Russians advance toward German Poland and capture Sandomerz in Galicia.

Nov. 5. Russians capture Jaroslau, Galicia.

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Nov. 15. Russians advance upon Cracow.

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Nov. 23. Germans forced to retreat on Warthe-Vistula line in Poland.

Nov. 27. Austria evacuates Czernowitz, Bukowina,

Nov. 29. Russians bombard Cracow.

Ten miles of German trenches in northern Poland captured.

Nov. 30. Russians repulse Germans with great losses at Bzeszow. 

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Nov. 5. Servia severs diplomatic relations with Turkey.

Nov. 7. Russians defeat Turks near Erzerum, Armenia. 

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Nov. 4. German cruiser Yorck sunk by mine in Wilhelmshafen harbor; two hundred and sixty-six lives lost.

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Nov. 7. Japanese capture Kiauchau.

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Nov. 9. Germans surrender Tsingtau.

Nov. 10. German cruiser Emden driven ashore and burned by Australian cruiser Sydney, two hundred casualties.

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Nov. 26. British battleship Bulwark blown up off Sheerness; seven hundred and fifty lives lost.

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Dec. 27. America protests against British stoppage of American trade, 

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Dec. 16. Germans raid British seacoast towns of Scarboro, Hartlepool and Whitby, killing ninety-three persons.

Dec. 18. British protectorate proclaimed throughout Egypt. 

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Dec. 12. Allies drive Germans from the Yser and occupy the west bank of the canal.

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Dec. 30. German aeroplanes raid Dunkirk, killing fifteen, wounding thirty-two. 

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Dec. 10. French capture Aspach, in Alsace. 

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Dec. 15. Austrians cross passes of the Carpathians in Galicia.

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Dec. 19. Russians withdraw to selected positions behind the Bzura River; hold Austrians on the Dunajec.

Dec. 26. Austrians badly defeated at Deckla, Galicia, losing ten thousand prisoners. 

Dec. 2. Austrian s capture Belgrade, Servia.

Dec. 7. Servians completely break up Austrian army of invasion, inflicting considerable losses.

Russians rout Turks with heavy losses near Batoum, Trans-Caucasia.

Dec. 14. Servians reoccupy Belgrade. 

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Dec. 6. Germans capture Lodz, in Russian Poland.

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Dec. 26. Germans reoccupy Mlawa, Poland. 

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Dec. 8. German cruisers Leipzig, Scharnhorst, Gneisenau and Nuernberg sunk by British fleet off Falkland Islands.