Question

Когда началась мировая война?

Answer 1

Первое Мировая-28 июля 1914г.
Вторая Мировая-1 сентября 1939г.

Answer 2

World War II Start Date

The World War II began on September 1, 1939 when Germany invaded Poland. This invasion marked the beginning of the war, leading to the involvement of many countries and the escalation of the conflict.

The immediate trigger for the war was Germany's invasion of Poland on September 1, 1939