A British success in German East Africa, by which the occupation of the northern half of the colony is made secure. April 23 (Easter Sunday) An engagement at Katia on the Egyptian frontier. April 24 (Mon.) Riots in Dublin: the Sinn Feiners occupy the Post Office and St. Stephen's Green. Mesopotamia (night of the 24th-25th):--An unsuccessful attempt is made to run a supply ship into Kut. April 25 (Tues.) German battle-cruisers bombard Lowestoft and Great Yarmouth; they are pursued home but escape in safety. A Zeppelin raid on the eastern counties of England. April 26 (Wed.) Fighting in Dublin. A Zeppelin raid on Kent. April 27 (Thur.) Martial law is proclaimed throughout Ireland. H.M.S. _Russell_ (battleship) is sunk by a mine off Malta. H.M.S. _Nasturtium_ (sloop) is sunk by a mine in the Mediterranean. The German submarine UC5 is captured in the North Sea. April 28 (Fri.) The Second Battle of Lake Narotch: a Russian reverse. April 29 (Sat.) Italy:--The Austrians are driven from the Adamello glacier by Alpini. Mesopotamia:--Kut-el-Amara capitulates, after a siege of 144 days, owing to failure of supplies (see Dec. 7, 1915). May 1 (Mon.) The Irish rebellion is crushed (see April 20). A Zeppelin raid on Scotland and the northeast of England. May 2 (Tues.) Resignation of Mr. Birrell, Secretary of State for Ireland. Verdun:--A French success at the Mort Homme. A Zeppelin raid on Scotland and England: the Zeppelin L20, returning from this raid, is wrecked off Norway. May 3 (Wed.) Verdun:--Fresh German attacks on the Mort Homme begin. May 4 (Thur.) Germany, in a Note to the U.S.A., agrees to sink no ships without warning (see April 19). The Zeppelin L 7 is destroyed off Schleswig by the gunfire of British warships. May 5 (Fri.) Verdun:--Fierce fighting for Hill 304. A Zeppelin is destroyed near Salonika. May 7 (Sun.) Verdun:--A great German attack on Hill 304 results in a slight gain of ground. May 8 (Mon.) Verdun:--The Germans lose ground at the Mort Homme and Fort Douaumont. The White Star liner _Cymric_ is torpedoed without warning by a German submarine near the Irish coast. May 10 (Wed.) Persia:--Kasr-i-Shirin is occupied by the Russians. May 11 (Thur.) A German success near Vermelles: 500 yards of British front-line trenches are captured. May 12 (Fri.) A British counter-attack near Vermelles is partially successful. May 13 (Sat.) The Germans attack the British at Ploegsteert Wood and are repulsed. The Caucasus:--The Russians retire on Erzerum. The British monitor M30 is sunk in action in the Gulf of Smyrna. May 14 (Sun.) Italy:--The Battle of the Trentino begins (see June 4). May 15 (Mon.) The British capture a German trench on the Vimy Ridge. The Austrians advance in the Trentino. May 16 (Tues.) A Turkish force is defeated by an Australian detachment in the Sinai Peninsula. May 17 (Wed.) Verdun:--Fresh German attacks on Hill 304 are unsuccessful.