Karakhanid rule did not last long because in 1220 nearly all Central Asia and the territory of modern Kazakhstan were invaded by Mongols. There were no written documents about Taraz's growth under the Mongols after they razed it to the ground. Remnants of fire found during the excavation show that the city was burnt. Probably the town was renamed as Yany ('New'); while mentioning it, European and Arabic sources write "The city Yany, named Taraz before the conquest." Archaeological finds show that the once-lively city under the Mongolian yoke lost its previous significance and independence. The blooming of settled life in Taraz ended and decline began. Under the Chagatayids (descendants of Chagatai Khan) coins were minted in Taraz until 1334. The Tsareviches, who, as Vasa of 14th century states, "burnt the Golden Horde, destroyed Taraz and other cities, and killed the population. They took everything they could take, and burnt the rest. There was a mention of the city again in 1345 in the road guide book as a city laid on the trade route from Transoxiana to Almalyk."