The history of gangs in Australia goes back to the colonial era. Criminal gangs flourished in The Rocks district of Sydney in its early history in the 19th century. The Rocks Push was a notorious larrikin gang which dominated the area from the 1800s to the end of the 1900s. The gang was engaged in running warfare with other larrikin gangs of the time such as the Straw Hat Push, the Glebe Push, the Argyle Cut Push, the Forty Thieves from Surry Hills, and the Gibb Street Mob.