Question

when was 1st world war held​

Answer 1

The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.

Answer 2

Answer:

July 28, 1914 – November 11, 1918

Explanation:

World War I was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.