and Phoenician alphabets developed in the wake of the Bronze Age collapse, out of their immediate predecessor script Proto-Canaanite (Late Proto-Sinaitic) during the 13th to 12th centuries BCE, and earlier Proto-Sinaitic scripts. The earliest known inscription in the Paleo-Hebrew script is the Zayit Stone discovered on a wall at Tel Zayit, in the Beth Guvrin Valley in the lowlands of ancient Judea in 2005, about southwest of Jerusalem. The 22 letters were carved on one side of the stone, which resembles a bowl on the other. The find is attributed to the mid-10th century BCE. The so-called Ophel inscription is of a similar age, but difficult to interpret, and may be classified as either Proto-Canaanite or as Paleo-Hebrew. The Gezer calendar is of uncertain date, but may also still date to the 10th century BCE. The script on the Zayit Stone and Gezer Calendar are an earlier form than the classical Paleo-Hebrew of the 8th century and later; this early script is almost identical to the early Phoenician script on the 9th-century Ahiram sarcophagus inscription. By the 8th century, a number of regional characteristics begin to separate the script into a number of national alphabets, including the Israelite (Israel and Judah), Moabite (Moab and Ammon), Edomite, Phoenician and Old Aramaic scripts. Linguistic features of the Moabite language (rather than generic Northwest Semitic) are visible in the Mesha Stele inscription, commissioned around 840 BCE by King Mesha of Moab. Similarly, the Tel Dan Stele, dated approximately 810 BCE, is written in Old Aramaic, dating from a period when Dan had already fallen into the orbit of Damascus. The oldest inscriptions identifiable as Biblical Hebrew have long been limited to the 8th century BCE. In 2008, however, a potsherd (ostracon) bearing an inscription was excavated at Khirbet Qeiyafa which has since been interpreted as representing a recognizably Hebrew inscription dated to as early as the 10th century BCE. The argument identifying the text as Hebrew relies on the use of vocabulary. From the 8th century onward, Hebrew epigraphy becomes more common, showing the gradual spread of literacy among the people of the Kingdom of Israel and the Kingdom of Judah; the oldest portions of the Hebrew Bible, although transmitted via the recension of the Second Temple period, are also dated to the 8th century BCE. Use in the Israelite kingdoms The Paleo-Hebrew alphabet was in common use in the kingdoms of Israel