Analysis of information sources in references of the Wikipedia article "Proto-Canaanite alphabet" in English language version.
By 1000 B.C.E., however, we see Phoenician writings [..]
By the beginning of the second millennium BCE (the late Middle Bronze Age in Canaan), the scribes of Ugarit began to use a new script based on twenty-seven cuneiform characters. The southern Canaanites also developed new scripts of their own, two variations in fact-Proto-Sinaitic and Proto-Canaanite-both of which were also based upon the use of acronyms (Albright 1966; Cross 1967; Naveh 1982). Unfortunately, only a few examples of each have been recovered to date, and the ones that do exist are mostly incomplete and therefore difficult to decipher. As a result, some fundamental questions regarding the time of the first Proto-Canaanite scripts and the origins of the alphabet remain unanswered... Proto-Sinaitic... Today archaeologists know of some thirty to forty Proto-Sinaitic inscriptions that have been found on statuettes and stelae and carved into the rock faces around Serabit el-Khadim... Proto-Canaanite... Further north, another version of this new script began to emerge. Current knowledge of this script, Proto-Canaanite, is based on some twenty-five inscriptions, the earliest dating to the late Middle Bronze Age and the latest appearing at the beginning of the Late Bronze Age. These inscriptions, most of which were found in a relatively small area in the southern Shephelah, span much of the second millennium BCE, though there is a notorious fourteenth-century-BCE. gap from which no texts have been found... The earliest known example of a Proto-Canaanite inscription is one word incised on a bronze dagger discovered at Lachish of the MB2 (eighteenth to seventeenth century BCE) (Starkey 1934). At first these inscriptions appeared in rather pedestrian contexts-for example, potsherds from Gezer and Nagila-and may have been used to identify the potter. It is possible that this new script was used more informally at first, while Akkadian remained the official language, which is certainly plausible considering that the new script was more accessible and required less rigorous training. In the thirteenth and twelfth (and possibly eleventh) centuries BCE, Proto-Canaanite inscriptions appear more frequently in the archaeological record, and their distribution is more widespread, though still largely in the south. These include examples from Lachish, Beth Shemesh, and 'Izbet Sartah. The inscription from the 'Izbet Sartah ostracon seems to represent the exercise of a scribe-in-training. On one line appear the letters of the alphabet, but there are several omissions and departures from the order typical of the time, and several odd combinations of signs make portions of the inscription unintelligible (Mazar 1990). By this time, Proto-Canaanite was also used for religious purposes, as indicated by an inscribed ewer found in the Fosse Temple at Lachish (c. 1220 .c.E.), which bears a blessing to a goddess...The latest Proto-Canaanite inscriptions date to the eleventh century B.C.E. Examples from this time have been found at Rapa and Gerba'al, and a group of five inscribed arrowheads was found near el-Khadr, south of Bethlehem
By 1000 B.C.E., however, we see Phoenician writings [..]