When was the first world war happened??

it started on 24 July 1914 and ended on November 11 1918.

Explanation:

It started because of the assassination of Archduke Franz Ferdinand of Austria.

The first World War started on July 28th 1914 and lasted till November 11, 1918

Explanation:

the correct statement is letter a.   according to the mandate of heaven, kings were considered godlike beings, so they could do as they .

the mandate of heaven is a chinese political and religious ideology used since ancient times to justify the rule of the king or emperor of china, that has been in place since the zhou until the dynasty system ended. it has been created to justify the zhou as the main power of the region. in order to keep harmony, the ruler has to make what he wants and what people want. he had to make good choices to satisfy the people and then they will be happy and keep you in power.