1915th

The 1915th is a term that can refer to different concepts depending on the context. In the context of military history, it often refers to the 1915th Infantry Regiment of the United States Army, which was activated during World War I. The regiment was part of the 45th Infantry Division and saw action on the Western Front. It is notable for its participation in the Battle of the Argonne Forest, one of the largest and bloodiest battles of the war.

In a broader sense, the term "1915th" can also refer to the year 1915, which was a significant year in global history. It marked the beginning of the Battle of Gallipoli, a major campaign of World War I. The year also saw the sinking of the RMS Lusitania, a British ocean liner that was torpedoed by a German U-boat, leading to significant diplomatic tensions between the United States and Germany. Additionally, 1915 was the year that the Treaty of Versailles was signed, although it was not ratified until 1920.

The term can also be used in a more abstract sense to refer to the 1915th anniversary of a particular event or date. For example, the 1915th anniversary of the signing of the Magna Carta in 1215 would fall in the year 3130.