Lucas majors in classic linguistics. He is equal to recognizing a language in a 1 way no matter how unfamiliar it is. Last year, he 2 a shell with some totally strange 3 carved on it at a stall（小摊）.
Based on his demanding 4 he knew it was from a small village. Besides, after 5 many related reference books, he had his point of view:the symbols were 6 as a variety of the writing system of Jiaguwen, a kind of writing system which dates back to 1500 BC.
Lucas had a 7 attitude to the discovery and applied to his university for a further research by visiting the village. With permission given, he visited it. He found the mother tongue of the villagers was a special dialect, whose vocabulary 8 from Mandarin（普通话） spoken by 1.4 billion people.
Despite many 9 , understanding the dialect and finding more shells helped him complete a report. The report was 10 where he gave a full description: The characters 11 by a small nation in the Shang Dynasty were passed down by means of bones and 12 . Afterwards, the nation went through ups and downs, 13 for hundreds of years. But it 14 disappeared due to some factors.
Lucas's report was a 15 in the academic field, attracting more people to these special characters.
