Chronology of the War
Showing Progress of Campaigns on All Fronts and Collateral Events to and Including Oct. 15, 1914. [A]
CAMPAIGN IN EASTERN EUROPE
July 21—Situation threatens European war; fear that Russia will aid Servia.
July 23—Austria sends ultimatum to Servia; Austrian Army Corps mobilized at Temesvar, and fleet gathers at Semlin.
July 24—Russia will ask Austria to extend time for Servia's reply to ultimatum; Austria will brook no interference.
July 25—Servia's reply to ultimatum unsatisfactory; Russian Army mobilizing.
July 26—Servian Army mobilizing; Russian warning to Germany.
July 27—Austrian Army invades Servia; Servians blow up bridge across Danube; report of mobilizing of Montenegrin Army; Austria denounces Servia's reply to ultimatum; Cossacks fire on Germans at frontier.
July 28—Austria declares war on Servia and Emperor issues manifesto; fighting along River Drina; Russian forces mass on eastern border.