How long did World War 1 last?

Answer 1

Four (4) years...
From 28 July 1914 to 11 November 1918

Hope this is accurate :D
The first hostilities of World War 1 broke out in a German protectorate in Africa in early August of 1914. The Treaty of Versailles was signed on June 28, 1919, ending most hostilities. However, an important armistice was signed on November 11, 1918, and is traditionally regarded as the end of the war. The last peace treaties concerning the conflict were not signed until August 23, 1923.

Traditionally, then, the war lasted about four years and three months -- from August of 1914 to November of 1918. Significant hostilities lingered about seven months longer; and Allied forces weren't withdrawn from Turkey until 1923.

World War One lasted from July 28, 1914 to November 11, 1918. So it last about 4 years and 13 days.

4 years and 3 months.

it started on August of 1914.

and ended on 11th of November of 1918.

World War 1 started on July 28, 1914 to 1918

Austria-Hungary, supported by Germany, declared war on Serbia on July 28, 1914. The chain of events that followed in the next few days was as follows:

• Russia, an ally of Serbia, began a partial mobilization.

• Germany declared war on Russia, August 1, 1914.

• Germany declared war on France, August 3, 1914.

• German troops invaded Belgium, August 4, 1914.

• Britain declared war on Germany, August 4, 1914.

4 years.(1914-1918)

World War I started on July 28, 1914 and ended on November 11, 1918. It was 4 years, 3 months, and 17 days long. :)
Four years. 1914-1918

Answer 2

The fighting in WW1 started in 1914 and went on until 1918.