 Mayanist scholar Stephen Houston contests this view by arguing that future dates on Maya inscriptions were simply meant to draw parallels with contemporary events, and that the words on the stela describe a contemporary rather than a future scene.In April–May 2012, a team of archaeologists unearthed a previously unknown inscription on a stairway at the La Corona site in Guatemala.The inscription, on what is known as Hieroglyphic Stairway 12, describes the establishment of a royal court in Calakmul in 635 AD, and compares the then-recent completion of 13 kʼatuns with the future completion of the 13th bʼakʼtun.