Western Front
Battle of the Somme: British 33rd Division attack at High Wood fails (German counter-attack, also August 23 and 24), British advances towards Ginchy and Guillemont.
France takes parts of Maurepas village.
Violent German counter-attacks north of Maurepas beaten back by French.
Battle of Verdun: French take the whole of Fleury and make incremental progress at Thiaumont.

Southern Front
French forces establish the Autonomous Albanian Republic of Korçë after they captured the city of Korçë, Albania.
Macedonia: Bulgars take Florina, also occupy several Greek forts.

Naval and Overseas Operations
North Sea: Whole High Seas Fleet puts to sea (until August 19) for penultimate time until April 1918 with aim of shelling Sunderland and drawing British warships onto five lines of U-boats (24 in all); 8 Zeppelins scout. Royal Navy submarine E-23 (one of 25 subs on patrol) puts 2 torpedoes into battleship Westfalen (one of 18 battleships and pre-dreadnoughts, together with 2 battlecruisers) forcing her back to port, but Scheer persists and Room 40 aided Jellicoe has sailed to meet him at 1700 hours, 5 hours before Scheer sorties.
East Africa: General Northey occupied Lupembe.

Political, etc.
Germany: Falkenhayn, Conrad and Enver sign convention for action against Rumania.
Russia: General Nikolai Ruzsky is appointed the commander-in-chief of the Russian northern armies.
United States: Gasoline prices in the U.S. drops to 23 cents per gallon, compared to 26 cents at the beginning of the week.

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