The first sinking of the war
German mine layer KÖNIGIN LUISE is scuttled in the North Sea after being fired on by the Royal Navy – the first sinking of the war.
Defense of the Realm Act
Defense of the Realm Act is passed, four days after the UK entered the war. It gives the government wide-ranging powers, including allowing requisitioning of ships.
First sinking of a U-boat
The German U-boat U-15 is rammed by H.M.S. BIRMINGHAM and sinks with all hands.
AQUITANIA collides with the steamer CANADIAN
The Cunard liner AQUITANIA collides with the steamer CANADIAN, ending her two-week service as an Armed Merchant Cruiser. She returns to war service as a troopship in 1916.
Heavy losses to U-boats
Three obsolete Royal Navy cruisers (ABOUKIR, HOGUE and CRESSEY) patrolling together off the coast of the Netherlands are sunk by U-9, with 1,460 fatalities.
Ottoman torpedo boat seized
Ships of the British Dardenelles squadron seize an Ottoman torpedo boat, which leads in October to the closure of the Dardenelles to Allied shipping.
Battle off Texel
A British light cruiser and four destroyers sink four German torpedo boats.
Loss of hospital ship ROHILLA
Six lifeboats participated in rescuing the survivors of the ROHILLA sinking
Q-ships enter service
The first Q-ships, the British VICTORIA and the French MARGUERITE, go into service.
Battle of Coronel
Off the coast of central Chile, German Kaiserliche Marine forces defeat a Royal Navy squadron, sinking two armoured cruisers. Over 1,500 British lives were lost and three Germans were injured.
Raid on Yarmouth
German ships shell the beach at Yarmouth. A British submarine sinks after hitting a mine, and a German cruiser is sunk by a mine as she returns home.
Turkish forts attacked
H.M.S. INDOMITABLE and INDEFATIGABLE with the French battleships SUFFREN and VÉRITÉ attack Turkish forts in the Dardnelles, before the formal declaration of war between Britain and the Ottoman Empire.
Battle of the Falkland Islands
The British battlecruisers INVINCIBLE and INFLEXIBLE, the armoured cruisers CARNARVON, CORNWALL and KENT, and the light cruisers BRISTOL and GLASGOE sink two armoured cruisers and two light cruisers, and capture two transports.
Ottoman battleship torpedoed
Submarine H.M.S. B11 torpodoes the Ottoman battleship MESÛDIYE, south of Çanakkale.
Scarborough, Hartlepool & Whitby attacked
Raids on Scarborough, Hartlepool & Whitby by the German Navy result in 137 deaths and 592 casualties, many civilian. One British cruiser, three British destroyers and three German cruisers are damaged.
Royal Naval Air Service aircraft, launched from the Royal Navy's seaplane tenders near Helgoland, attack Zeppelin bases in Lower Saxony.