Sarajevo : Sunday, 28 June 1914 -- Reactions. Vienna : anger, not sympathy ; St. Petersburg : no quarter given ; Paris and London : unwelcome interruption ; Berlin : sympathy and impatience -- Countdown. The Count Hoyos mission to Berlin : Sunday-Monday, 5-6 July ; War council in Vienna (I) : Tuesday, 7 July ; Radio silence : 8-17 July ; Enter Sazonov : Saturday, 18 July ; War council in Vienna (II) : Sunday, 19 July ; Poincaré meets the Tsar : Monday, 20 July ; Sazonov's threat : Tuesday, 21 July ; Champagne summit : Wednesday-Thursday, 22-23 July ; Anti-ultimatum and ultimatum : Thursday, 23 July ; Sazonov strikes : Friday, 24 July ; Russia, France, and Serbia stand firm : Saturday, 25 July ; Russia prepares for war : Sunday, 26 July ; The Kaiser returns : Monday, 27 July ; "You have got me into a fine mess" : Tuesday, 28 July ; "O will not be responsible for a monstrous slaughter!" : Wednesday, 29 July ; Slaughter it is : Thursday, 30 July ; Last Chance Saloon : Friday, 31 July ; "Now you can do what you want" : Saturday, 1 August ; Britain wakes up to the danger : Sunday, 2 August ; Sir Edward Grey's big moment : Monday, 3 August ; World war : no going back : Tuesday, 4 August -- The question of responsibility