History of research The site of Oxkintok was first described in the 16th century by Brother Antonio de Ciudad Real, who noted the proximity of the site to the Puuc mountain range and the large ruined structures. He was also first to make note of Satunsat "the place where they tossed those who had committed great offenses so that there they may die" (Torecilla, 1998). Afterwards the site isn't mentioned again until the 19th century when it's visited by J.L. Stephens (Torecilla, 1998). In 1842, John Lloyd Stephens and Frederick Catherwood explored Oxkintok, including The Labyrinth. In the early 20th century, under the Carnegie project, Edwin M. Shook spent a short time at the site. The first actual excavations were funded by the University of Pennsylvania and directed by H.E. Mercer in February 1895. These first investigations were focused on the architectural group of Satunsat. Between 1932 and 1940 the Carnegie institution of Washington funded a large project to collect data on many sites of the Yucatán peninsula (Torecilla, 1998). Oxkintok was studied by H.E.D Pollock, E.M. Shook and G.W. Brainerd with a focus heavily on architecture and ceramics during the 1940s but no large scale excavations took place. Since the 1980s a long-term project directed by Miguel Rivera Dorado (of Madrid, Spain) has produced a vast amount of data on Oxkintok. Most recently, Mexico's INAH has invested in excavations and reconstructions at the site (under the direction of Ricardo Velazquez Valadez). The Oxkintok Project The first large scale excavations at Oxkintok were conducted from 1986 to 1991 during the Oxkintok Project/M.A.E.M. (Mision Arcqueologica de Espana en Mexico) headed by Miguel Rivera Dorado. The goals of the excavations were twofold (Madrid, 1991). 1) Finish excavations at a site that suggest clues towards the social order of prehispanic Mayans. 2) Oxkintok provides clues to gaps in the evolution of the first civilizations in the Northern Yucatán. This is by far the majority of the body of publications available as individual team members publish on Oxkintok. Chronology The site has provided evidence of habitation from the Late Preclassic through the Late Postclassic periods of Maya prehistory. However, Oxkintok became a major center between the Early Classic and Terminal Classic periods (including what Carmen Varela terms the "Middle Classic"). It is well known as possessing a very early Long Count date in 475 CE (on the lintel of Structure 6 in the "Canul"