Julius Caesar led his legion across the Rubicon river from Cisalpine Gaul to Italy. By doing so, he broke the law on imperium (right to command) and made armed conflict inevitable.

Caesar Crossing the Rubicon

Julius Caesar led his legion across the Rubicon river from Cisalpine Gaul to Italy. By doing so, he…

An image of Julius Caesar and his army crossing the Rubicon River, which is located in northeastern Italy. The idiom "Crossing the Rubicon" refers to Julius Caesar passing this river in 49 BC, and means to pass a point of no return.

Caesar Crossing the Rubicon

An image of Julius Caesar and his army crossing the Rubicon River, which is located in northeastern…