2nd » World War I: Austria-Hungary Austrian sabotage causes the sinking of the Italy Italian battleship 'Italian battleship Leonardo da Vinci Leonardo da Vinci' in Taranto.
5th » World War I: Battle of Romani: Allied forces, under the command of Archibald Murray, defeat an attacking Ottoman Empire or Ottoman army under the command of Friedrich Freiherr Kress von Kressenstein, securing the Suez Canal and beginning the Ottoman retre
14th » Romania declares war on Austria-Hungary, joining the Entente in World War I.
25th » The United States National Park Service is created.
27th » The Kingdom of Romania declares war on Austria-Hungary, entering World War I as one of the Allies of World War I or Allied nations.
28th » World War I: Germany declares war on Kingdom of Romania e.g Romania.
28th » World War I: Kingdom of Italy e.g Italy declares war on Germany.
29th » The United States passes the Jones Law (Philippines) named Philippine Autonomy Act.