Western Front
Kaiserschlacht: Local German attacks in La Clytte-Voormezeele sector repulsed; French and British positions re-established.
Germans gain small success at Albert.
Minor French success at Grivesnes, north-west of Montdidier.
French troops by a destroyed German A7V tank at the Villers-Bretonneux battlefield: © IWM (Q 55073): https://twitter.com/CenturyAgoToday...801450944856065
France: French ace Fonck in 5min 50sec (in Spad) destroys 6 German aircraft (again on September 26) over the Somme firing only 52 rounds.
Capitaine Rene Fonck was a master of deflection shooting and his sparing of ammunition bordering on the uncanny. His official victory score as a thoughtful and analytical fighter pilot was 75 at the end of the war, but he claimed 127 kills: https://i1.wp.com/ww2-weapons.com/w...Fonck.jpg?ssl=1
Allied Supreme War Council first discusses air policy. 3 of 4 ‘Giant’ bombers flying raids on coastal targets destroyed in crash-landings (fog).
British First Aid Nursing Yeomanry ambulance drivers attached to the Belgian Army at Calais: © IWM (Q 3257): https://twitter.com/CenturyAgoToday...893310862274561
British soldier talking with a French farmgirl at Rollencourt: © IWM (Q 3259): https://twitter.com/CenturyAgoToday...195310611189760
British 7th Battalion, Royal Fusiliers returning from the frontlines at Ancre: © IWM (Q 10952): https://twitter.com/CenturyAgoToday...225510954754050

Southern Front
Italians storm Monte Corno, in the Vallarsa (Upper Piave) during night; take 100 prisoners.

Naval and Overseas Operations
Belgium: Second blocking attack on Ostend fails. H.M.S. Vindictive sunk to block the harbor (see April 23rd).
There are several sources which claim: The attempt is partially successful, but smaller German ships continue to use the port: https://twitter.com/CenturyAgoToday...134896854609920
Since the port was only used by small ships (minesweepers, torpedo boats and coastal submarines) in the first place, the effect on German usage was nil. Thus, the claims of “partial success” must be discarded.
Channel: Troop transport Queen Alexandra rams and sinks coastal submarine UB-78 north of Cherbourg.

Political, etc
Ukraine: M. Ustemovich proclaimed President of The Ukraine; General Pavlo Skoropadski remains Hetman (see April 29th).
United Kingdom: Debate in House of Commons on General Maurice's letter; motion by Mr. Asquith defeated by large Government majority.
Portugal: Dr. da Silva Paes, elected Portuguese President (see December 28th, 1917 and December 14th, 1918).
Netherlands: Joint Trade Committee of Entente Powers formed in Holland.

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On the kinkometer, my kink measures as a sine wave.