• june 28, 1914 archduke francis ferdinand is assassinated.
• july 28, 1914 austria-hungary declares war on serbia, beginning world war I.
• august 2-7, 1914 germany invades luxembourg and belgium france invades alsace. british forces arrive in france. nations allied against germany were eventually to include great britain, russia, italy, australia, new zealand, south africa, rhodesia, romania, greece, france, belgium, united states, canada, serbia, india, portugal, montenegro, and poland.
•august 10, 1914 austria-hungary invades russia.
• september 9, 1914 allied forces halt german advance into france during first battle of the marne.