Ankhari Cultural Split

The Ankhari Cultural Split was a rejection of Mesou culture by the Ankhari peoples. It was espoused by Ankhari tribal chief Katálexi following his victory over the Mesou Queen of Ankh Aretii in 1820BGE, after which he published his Ankhari Declarations and thereafter became Tyri, or High-King, of the Ankhari tribes.
Katálexi's and his Declarations rejected key cultural pillars of Mesou society such as centralised taxation and government, monarchy and matrilineal hereditary leadership. With support from the Ankhari tribes, Katálexi's ideas spread across Ankh and formed a new Ankhari culture that promoted tribal leadership with a shared mutual respect of the peace and trade that had allowed the region to prosper under the Mesou Queens' rule of Ankh. 
These ideas later spread across the fledgling Ankhosian Empire and had a profound effect on Akhosian relations with Argaiv, directly leading to the War of the Sapphire Broach and later conflicts, culminating in the destruction of Argaiv and Ankh.
== The Ankhari Declarations ==
Following Katálexi's victory over queen Aretii, he published his "Ankhari Declarations", a five point document that laid the framework for the cultural split.
* Mesou Queens are devoid of authority: they are tyrannical, vain and built on the blood of the tribes
* Leadership based on gender has no merit: all peoples contribute to the betterment or detriment of others, in peace and war
* Hereditary leadership is flawed: leaders should be elected by the people, for the people, based on their strengths
* Ankhari buildings should be sourced in Ankh: building the palaces and temples of Mesou serves only to enrich the Argaivan continent
* Mesou language excludes the autonomy of the Ankhari tribes: we should embrace our traditional dialects
The Declarations were well received by the tribal leaders of Ankh, as they aligned with tribal leaders' aims to restore their authority and power over the region. Nevertheless, many affluent and powerful Ankhari, including Katálexi, had grown accustomed to the prosperity that Mesou rule had brought, which had centralised power and wealth and placed an emphasis on peace and trade. 
Seeking to consolidate their regional power, whilst retaining peace, a number of tribal leaders elected Katálexi to the role of Tyri, formerly a military title last used during the Mesou conquests. In this role, Katálexi would promote a peaceful and loosely united Ankh, whilst retaining tribal authority, acting much like a High-King of the Lesser KIngdom of Pem. 
A number of tribes resisted this, but after some were crushed by the forces of Katálexi the remaining holdouts soon aquiesed.