When did they start calling world war 1?
No context provided
When did they start calling world war 1, "world war one"?
September 1914
No context provided
When did they start calling world war 1, "world war I"?
June 12, 1939
World war
https://en.wikipedia.org/wiki/World%20war
World War I or the First World War, often abbreviated as WWI or WW1, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Contemporaneously known as the Great War, the World War, and "the war to end all wars",[7] it led to the mobilisation of more than 70 million military personnel, including 60 million Europeans, making it one of the largest wars in history,[8][9] and also one of the deadliest conflicts in history,[10] with an estimated 8.5 million combatant deaths and 13 million civilian deaths as a direct result of the war.[11]
World War I
The term world war was first coined in September 1914 by German biologist and philosopher Ernst Haeckel.
World War I Names
The term "World War I" was coined by Time magazine on page 28b of its June 12, 1939 issue. In the same article, on page 32, the term "World War II" was first used speculatively to describe the upcoming war. The first use for the actual war came in its issue of September 11, 1939.[6]
World war Etymology
World War I or the First World War, often abbreviated as WWI or WW1, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. It was also known as the Great War, the World War, and "the war to end all wars". The term world war was first coined in September 1914 by German biologist and philosopher Ernst Haeckel. The term "World War I" was coined by Time magazine on page 28b of its June 12, 1939 issue. In the same article, on page 32, the term "World War II" was first used speculatively to describe the upcoming war. The first use for the actual war came in its issue of September 11, 1939.