Copán is an archaeological site of the Maya civilization located in the Copán Department of western Honduras, not far from the border with Guatemala. It was the capital city of a major Classic period kingdom from the 5th to 9th centuries AD. The city was located in the extreme southeast of the Mesoamerican cultural region, on the frontier with the Isthmo-Colombian cultural region, and was almost surrounded by non-Maya peoples. In this fertile valley now lies a city of about 3000, a small airport, and a winding road.
Copán was occupied for more than two thousand years, from the Early Preclassic period to the Postclassic. The city developed a distinctive sculptural style within the tradition of the lowland Maya, perhaps to emphasize the Maya ethnicity of the city's rulers.
The city has a historical record that spans the greater part of the Classic period and has been reconstructed in detail by archaeologists and epigraphers. Copán was a powerful city ruling a vast kingdom within the southern Maya area. The city suffered a major political disaster in AD 738 when Uaxaclajuun Ub'aah K'awiil, one of the greatest kings in Copán's dynastic history, was captured and executed by his former vassal, the king of Quiriguá. This unexpected defeat resulted in a 17-year hiatus at the city, during which time Copán may have been subject to Quiriguá in a reversal of fortunes.
A significant portion of the eastern side of the acropolis has been eroded away by the Copán River, although the river has since been diverted in order to protect the site from further damage.
Little is known of the rulers of Copán before the founding of a new dynasty with its origins at Tikal in the early 5th century AD, although the city's origins can be traced back to the Preclassic period. After this, Copán became one of the more powerful Maya city states and was a regional power in the southern Maya region, although it suffered a catastrophic defeat at the hands of its former vassal state Quirigua in 738, when the long-ruling king Uaxaclajuun Ub'aah K'awiil was captured and beheaded by Quirigua's ruler K'ak' Tiliw Chan Yopaat (Cauac Sky). Although this was a major setback, Copán's rulers began to build monumental structures again within a few decades.
The area of Copán continued to be occupied after the last major ceremonial structures and royal monuments were erected, but the population declined in the 8th and 9th centuries from perhaps over 20,000 in the city to less than 5,000. This decrease in population took over four centuries to actually show signs of collapse, showing the stability of this site even after the fall of the ruling dynasties and royal families. The ceremonial center was long abandoned and the surrounding valley home to only a few farming hamlets at the time of the arrival of the Spanish in the 16th century.