WW1 By KaydenceWroblewski Jun 28, 1914 archduke francz ferdinand archduke franz ferdinand was assassinated. Jul 28, 1914 WW1 begins. Austria-Hungary declared war on Serbia Aug 2, 1914 germany invades luxembourg, belgium, etc. Aug 10, 1914 austria-hungary invades russia Sep 9, 1914 allied forced german advance to france in the first battle of marne. Feb 18, 1915 germany starts blockade to great britain. May 7, 1915 lusitania sunk german submarine sinks lusitania, killing 128 americans. May 23, 1915 italy declares war on austria-hungary Jul 1, 1915 allied offensive begins the Battle of the Somme Apr 6, 1917 the united states declares war on germany Dec 15, 1917 russia signs armistice with germany Jan 8, 1918 woodrow wilson presents fourteen points Mar 21, 1918 german began its final offensive war Jun 2, 1918 american forces stop german attempt to cross the river at chateau-thierry. Dec 1, 1918 british and american forces enter germany. Jan 18, 1919 peace conference begins at paris Jan 10, 1920 treaty of versailles takes effect Period: Aug 24, 1921 to Aug 29, 1921 the united states signs separate peace treaties with germany, austria, & hungary.
archduke franz ferdinand was assassinated.