ntinued contact with Copán is evident, as well as longer distance contacts, possibly with Caracol in Belize. At about the same time major construction work was undertaken in the acropolis, including the building of the site's first ballcourt.
Apogee
Quiriguá traditionally had been subordinate to its southern neighbour, Copán, and in 724 Uaxaclajuun Ub'aah K'awiil, king of Copán, installed K'ak' Tiliw Chan Yopaat upon Quiriguá's throne as his vassal. As early as 734, however, K'ak' Tiliw Chan Yopaat had shown that he was no longer an obedient subordinate of Copán when he started to refer to himself as k'ul ahaw, holy lord, instead of using the lesser term ahaw, subordinate lord; at the same time he began to use his own Quiriguá emblem glyph. These early assertions of independence can only have been made if Quiriguá had managed to form an external alliance.
Indeed, this local act of rebellion appears to have been part of the larger political struggle between the two Maya "superpowers", the great cities of Tikal and Calakmul. In 736, only two years later, K'ak' Tiliw Chan Yopaat received a visit from Wamaw K'awiil, the high king of distant Calakmul, while Copán was one of Tikal's oldest allies. The timing of this visit by the king of Calakmul is highly significant, falling between the accession of K'ak' Tiliw Chan Yopaat to the throne of Quiriguá as a vassal of Copán and the outright rebellion that was to follow. This strongly suggests that Calakmul sponsored Quiriguá's rebellion in order to weaken Tikal and to gain access to the rich trade route of the Motagua Valley. It is likely that contact with Calakmul had been initiated soon after K'ak' Tiliw Chan Yopaat acceded to the throne, since Quiriguá experienced rapid growth soon after, suggesting that Quiriguá already was receiving external support.
In 738 the interlinked fortunes of Quiriguá and Copán took a
