Aug. 12—­Great Britain declares war on Austria-Hungary; Montenegro declares war on Germany.  Aug. 15—­Japan sends ultimatum to Germany to withdraw from Japanese and Chinese waters and evacuate Kiao-chow; Russia offers autonomy to Poland.  Aug. 20—­German army enters Brussels.  Aug. 23—­Japan declares war on Germany; Russia victorious in battles in East Prussia.  Aug. 24—­Japanese warships bombard Tsingtao.  Aug. 25—­Japan and Austria break off diplomatic relations.  Aug. 28—­English win naval battle over German fleet near Helgoland, Aug. 29—­Germans defeat Russians at Allenstein; occupy Amiens; advance to La Fere, sixty-five miles from Paris.

September 1—­Germans cross Marne; bombs dropped on Paris; Turkish army mobilized; Zeppelins drop bombs on Antwerp.  Sept. 2—­Government of France transferred to Bordeaux; Russians capture Lemberg.  Sept. 4—­Germans cross the Marne.  Sept. 5—­England, France, and Russia sign pact to make no separate peace.  Sept. 6—­French win battle of Marne; British cruiser Path finder sunk in North sea by a German submarine.  Sept. 7—­Germans retreat from the Marne.  Sept. 14—­Battle of Aisne starts; German retreat halted.  Sept. 15—–­First battle of Soissons fought.  Sept. 20—­Russians capture Jaroslau and begin siege of Przemysl.

October 9-10—­Germans capture Antwerp.  Oct. 12—­Germans take Ghent.  Oct. 20—­Fighting along Yser river begins.  Oct. 29—­Turkey begins war on Russia.

November 7—­Tsingtro falls before Japanese troops.  Nov. 9—­German cruiser Emden destroyed.

December 11—­German advance on Warsaw checked.  Dec. 14—­Belgrade recaptured by Serbians.  Dec. 16—­German cruisers bombard Scarborough, Hartlepool, and Whitby, on English coast, killing fifty or more persons; Austrians said to have lost upwards of 100,000 men in Serbian defeat.  Dec. 25—­Italy occupies Avlona, Albania.

January 1—­British battleship Formidable sunk.  Jan. 8—­Roumania mobilizes 750,000 men; violent fighting in the Argonne.  Jan. 11—­Germans cross the Rawka, thirty miles from Warsaw.  Jan. 24—­British win naval battle in North sea.  Jan. 29—­Russian army invades Hungary; German efforts to cross Aisne repulsed.

February 1—­British repel strong German attack near La Bassee.  Feb. 2—­Turks are defeated in attack on Suez canal.  Feb. 4—­Russians capture Tarnow in Galicia.  Feb. 8—­Turks along Suez canal in full retreat; Turkish land defenses at the Dardanelles shelled by British torpedo boats.  Feb. 11—­Germans evacuate Lodz.  Feb. 12—­Germans drive Russians from positions in East Prussia, taking 26,000 prisoners.  Feb. 14—­Russians report capture of fortifications at Smolnik.  Feb. 16—­Germans capture Plock and Bielsk in Poland; French capture two miles of German trenches in Champagne district.

February 17—­Germans report they have taken 50,000 Russian prisoners in Mazurian lake district.  Feb. 18—­German blockade of English and French coasts put into effect.  Feb. 19-20—­British and French fleets bombard Dardanelles forts.  Feb. 21—­American steamer Evelyn sunk by mine in North sea.  Feb. 22—­German war office announces capture of 100, Russian prisoners in engagements in Mazurian lake region; American steamer Carib sunk by mine in North sea.  Feb. 28—­Dardanelles entrance forts capitulate to English and French.