sentences:  Machaquila flourished in the Late to Terminal Classic periods, reaching the height of its power in approximately the ninth century.The rise in activity at Machaquila appears to have been a side effect of the collapse of the power of Dos Pilas over the Petexbatún kingdom.In 2004, archaeologists announced that they had uncovered a hieroglyphic panel at Cancuen that depicts Tajal Chan Ahk, the 8th-century king of that city.