Summary: This article presents the results of my work on the proto-Byblian (Lebanon) inscriptions, carried out in 1980 and 2000/2001. My research, based on heuristic and cryptological techniques, reveals that they are written in a Greek dialect and contain requests of Greek kings and private persons directed to Greek (such as Palaimon, Leukothea) and Semitic (Reshef) deities. In exchange for divine services various gifts are offered: deposits/treasures, animals, incense, precious wood. The proto-Byblian inscriptions mention such tribes and toponyms as Achaeans, Mysians, Lycians, Karpasios, Paphos, Kaunos. These inscriptions date from a period of migrations and may belong to the epoch of the Sea Peoples, invading the eastern coasts of the Mediterranean Sea in the XIII / XIIth centuries B.C.