Every day has a history associated with it. So what happened on July 30? In 762 AD, the city of Baghdad was founded by Caliph Al-Mansur. The Roman general Gaius Marius defeated the Cimbri at the ...

The Marius Canal is thought to have been constructed between 104 and 102 BCE during the Cimbrian Wars. It was ordered by Roman general Gaius Marius to improve supply routes for his troops.