Editing Magna Graecia (section)

===Expansion and conflict===
{{See also|History of Greek Sicily|Calabria}}

At the beginning of the 6th century BC, all the main cities of Magna Graecia on the Ionian Sea had achieved a high economic and cultural development, which shifted their interests towards expansion of their territory by waging war on neighbouring cities. The 6th century was therefore characterised by great clashes between the colonies. Some of the clashes that established the new balance and the new relationships of force were the [[Battle of the Sagra]] river (the clash between Locri Epizefiri and Kroton), the destruction of [[Siris, Magna Graecia|Siris]] (by Sybaris and Metapontum), and the clash between Kroton and Sybaris (which ended with the destruction of the latter).<ref>Arte seconda - la colonizzazione e il periodo Greco, capitolo III, Il VI secolo e lo scontro con Crotone, Battaglia Della Sagra, https://www.locriantica.it/storia/per_greco3.htm</ref>

As with all the events of this period precise dates are unknown, but the destruction of Sybaris may have occurred around 510 BC, while the two other clashes are placed around 580-560 BC, with the destruction of Siris before the [[Battle of the Sagra]].