Context: The Albanian bitumen extraction has a long history and was practiced in an organized way by the Romans. After centuries of silence, the first mentions of Albanian bitumen appeared only in 1868, when the Frenchman Coquand published the first geological description of the deposits of Albanian bitumen. In 1875, the exploitation rights were granted to the Ottoman government and in 1912, they were transferred to the Italian company Simsa. Since 1945, the mine was exploited by the Albanian government and from 2001 to date, the management passed to a French company, which organized the mining process for the manufacture of the natural bitumen on an industrial scale.

Question: What ancient group used bitumen extraction?
Answer: Romans

Question: When were the first published reports of bitumen extraction in Albania?
Answer: 1868

Question: What government had exploitation rights for bitumen extraction?
Answer: Ottoman

Question: When were the Ottoman rights given to the Simsa company?
Answer: 1912

Question: When was management of Albanian bitumen acquired by the French?
Answer: 2001

Question: The last known mentions of Albanian bitumen appeared in what year?
Answer: Unanswerable

Question: The Albanian Coquand published the first description of what?
Answer: Unanswerable

Question: When were the exploitation rights given to the Roman Empire? 
Answer: Unanswerable

Question: When did Simsa receive the industrial scale?
Answer: Unanswerable

Question: What was transferred to Simsa in 1917?
Answer: Unanswerable