In what year did World War I begin?

World War I began in 1914, specifically on July 28, when Austria-Hungary declared war on Serbia. This conflict was sparked by a series of events, including the assassination of Archduke Franz Ferdinand. The war quickly escalated as alliances were activated, leading to a widespread and devastating conflict that involved many nations around the world.

Understanding the timing of World War I is crucial for grasping the broader context of the 20th century, including its socio-political implications and the subsequent emergence of World War II. The years leading up to the war were marked by rising tensions among European powers, and recognizing 1914 as the starting point helps to situate the causes and the initial events that shaped modern history.