![](http://www.alamy.com/thumbs/6/AFF588B4-89F4-4537-8433-BB6771968F40/BT0NPJ.jpg)
The bridge over the Rubicon River where Julius Caesar crossed the boundry of the Roman Republic in 49BC
The idiom "Crossing the Rubicon" means to pass a point of no return, and refers to Julius Caesar's crossing of the river in 49 BC, which was considered an act of war. Because the course of the river has changed much since then, it is impossible to confirm exactly where the Rubicon flowed when Caesar and his legions crossed it.
Size: 3420px × 5109px
Location: Savignano sul Rubicone, Province of Forlì-Cesena, region Emilia-Romagna, Italy
Photo credit: © Christine Webb / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: bridge, caesar, cesar, crossing, julius, point, return, rubicon, rubicone, savignano, sul