The Avar Khanate, the Avar Nutsaldom (; ), also known as Khundzia or Avaria, was a long-lived Avar state, which controlled mountainous parts of Dagestan (in the North Caucasus) from the early 13th century to the 19th century. History Between the 5th and 12th centuries, Georgian Orthodox Christianity was introduced to the Avar valleys. The fall of the Christian Kingdom of Sarir in the early 12th century and later weakening of neighbouring Georgians by the Mongol invasions, who made their first appearance in the Caucasus with approximately 20,000 warriors led by Subutai and Jebe, terminated further Christian Georgian presence in this area. In fact, numerous traces of Christianity (crosses, chapels) are found within the Avar territory and it is now assumed that Christianity, penetrating from Georgia, survived among the Avars down to the 14th-15th centuries. After ravaging Georgia, the Mongols cut across the Caucasus Mountains during the winter to get around the Derbent Pass. Although the Avars had pledged their support to Muhammad II of Khwarezm (reigned 1200-1220) in his struggle against the Mongols, there is no documentation for the Mongol invasion of the Avar lands. As historical clues are so scarce, it is probably fruitless to speculate whether the Avars were the agents of the Mongol influence in the Caucasus and whether they were entrusted with the task of levying tribute for the khan, as modern historian Murad Magomedov suggests. The Golden Horde overran the region in 1241, but by the 14th century, the newly established Avar Khanate managed to maintain independence from the Mongols. The rise of the Shamkhalate of Kazi-Kumukh following the disintegration of the Golden Horde in the 15th century was at once a symptom and a cause of the khans' diminished influence during the 15th and 16th centuries. The khanate was a loosely structured state, sometimes forced to seek the Tsar's protection against its powerful enemies, while many mountainous communities (djamaats) obtained a considerable degree of autonomy from the khan. In the 16th century the region was the center of a fierce struggle for control by the Ottomans and the Safavids. Under Turkish influence, in the 17th century the majority of the Avar tribes adopted Islam. The consolidation of Islam in Avaristan in the 18th century resulted in a series of religious wars against the Georgian states, these sporadic forays are also known as Lekianoba in Georgian historiography. The references to these raids appear in