at Nimrod's tower (the Tower of Babel). Finding that they had already been dispersed, Fenius sent his scholars to study them, staying at the tower, coordinating the effort. After ten years, the investigations were complete, and Fenius created in Bérla tóbaide "the selected language", taking the best of each of the confused tongues, which he called Goídelc, Goidelic, after Goídel mac Ethéoir. He also created extensions of Goídelc, called Bérla Féne, after himself, Íarmberla, after Íar mac Nema, and others, and the Beithe-luis-nuin (the ogham) as a perfected writing system for his languages. The names he gave to the letters were those of his 25 best scholars. Alternatively, the Ogam Tract credits Ogma with the script's invention. Ogma was skilled in speech and poetry, and created the system for the learned, to the exclusion of rustics and fools. The first message written in ogam was seven b'''s on a birch, sent as a warning to Lug, meaning: "your wife will be carried away seven times to the otherworld unless the birch protects her". For this reason, the letter b is said to be named after the birch, and In Lebor Ogaim goes on to tell the tradition that all letters were named after trees, a claim also referred to by the Auraicept as an alternative to the naming after Fenius' disciples. Alphabet: the Beith-Luis-Nin Strictly speaking, the word ogham refers only to the form of letters or script, while the letters themselves are known collectively as the Beith-luis-nin after the letter names of the first letters (in the same manner as the modern word "alphabet" derives from the Greek letters alpha and beta). The order of the letters is BLFSN, leading the scholar Macalister to propose that the letter order was originally BLNFS. This was to fit into his own theories which linked the Beith-luis-nin to a form of the Greek alphabet current in Northern Italy in the 6th and 5th centuries BC. However, there is no evidence for Macalister's theories, and they have since been discounted by later scholars. There are in fact other explanations for the name Beith-luis-nin. One explanation is that the word nin, which literally means 'a forked branch,' was also regularly used to mean a written letter in general. Beith-luis-nin could therefore mean simply 'Beith-luis letters'. The other explanation is that Beith-luis-nin is a convenient contraction of the first five letters: Beith-LVS-nin. The ogham alphabet