The year 1914 is most notably marked by the outbreak of World War I, a major global conflict that began in July. The war involved many of the world's great powers, divided into two main alliances: the Allies and the Central Powers. Tensions had been building due to nationalism, militarism, and complex alliances, culminating in the assassination of Archduke Franz Ferdinand of Austria-Hungary. In addition to the war, 1914 saw significant political and social changes worldwide. The year was characterized by industrial advancements and the rise of new ideologies, including socialism and feminism. These developments would shape the course of the 20th century, influencing various movements and conflicts.