Question

when did world war started

Answer 1

world war 1 period:

July 28, 1914 – November 11, 1918

Answer 2

$\tt\underline\red{answer : - }\\ \tt\purple{ \: \: \: \: World \: War \: First \: began \: in \: 28 \: july } \\ \tt \purple{ 1914 \:and \: it \: ends \: \: \:in \: \: 1918 \: and \: \: also \: } \\ \tt \purple{ World \: \: \: War \: \: \: Second \: \: \: \: began \: \: \: in \: \: 1 st\: \: } \\ \tt \purple{September \: \: \: 1939 \: \: and \: \: ended \: \: in \: \: 2 cd } \\ \tt \purple{ September \: 1945.}$