- Bulgaria enters the war on the side of the Central Powers of Germany, Austria-Hungary and Turkey, with the commencement of hostilities against Serbia. Bulgaria enters World War I
- The Leader reports that over 700 recruits have been trained at Lithgow training camp. The recent installation of “a most businesslike shower bath” has met with much approval. Recruits to Lithgow
- Semendria in Serbia is taken by Austrian forces
11 October 1915
