The first recorded mention of the stone is in 1933, when professor
Frank Hibben (1910–2002), an
archaeologist from the
University of New Mexico, saw it. According to a 1996 interview, Hibben was "convinced the inscription is ancient and thus authentic. He report[ed] that he first saw the text in 1933. At the time it was covered with lichen and patination and was hardly visible. He claimed he was taken to the site by a guide who claimed he had seen it as a boy, back in the 1880s." However, Hibben's testimony is tainted by charges that in at least two separate incidents, he fabricated some or all of his archaeological data to support his
pre-Clovis migration theory. The reported 1880s date of discovery is important to those who believe that the stone is pre-Columbian. However, the
Paleo-Hebrew script, which is closely related to the
Phoenician script, was known to scholars by at least 1870 - thus not precluding the possibility of a modern hoax. Because of the stone's weight of over 80 tons, it was never moved to a museum or laboratory for study and safekeeping. Many visitors have cleaned the stone inscriptions over the years, likely destroying any possibility for scientific analysis of the inscriptions'
patina. Nevertheless, comparing it to a modern inscription nearby, geologist George E. Morehouse, a colleague of
Barry Fell, estimated that the inscription could be between 500 and 2000 years old and explaining its freshness and lack of patina as being due to frequent scrubbing to make it more visible. In April 2006, the first line of the unprotected inscription was obliterated by vandals. Visitors to the site are required to purchase a $35 Recreational Access Permit from the New Mexico State Land Office. ==Controversy==