input: Francis Bok waited three years, until 1996, before he tried to escape again. During the intervening three years he tended to the herds and regained Giemma's trust. Giemma regularly praised Bok's work with the animals yet still forced him to live a life of slavery.  Bok finally escaped from Giemma when he was 17 years old by walking through the forest to the nearby market town of Mutari. Bok went to the local police department to seek help, and asked the police to help him find his people. Instead of helping him, the police made him their slave for two months. Bok escaped from the police by simply taking their donkeys to the well, tying them, and leaving them behind as he walked into the crowded marketplace.  Bok asked a man with a truck to give him a ride out of Mutari. The man, a Muslim named Abdah, agreed to help him. Abdah thought that slavery was wrong and agreed to transport Bok to the town of Ed-Da'Ein in the back of his truck amongst his cargo of grain and onions. Bok stayed with Abdah, his wife and two sons for two months while Abdah tried to find a way to take Bok to Khartoum, the capital city of Sudan. When he could not find a friend to provide passage to Khartoum, Abdah bought a bus ticket to Khartoum for Bok. Francis Bok arrived in Khartoum with no money, no place to go, and did not know where to turn. Fortunately for Francis, another stranger helped him find his way to his fellow Dinka tribespeople in Khartoum in the Jabarona settlement.

Answer this question "When did Bok escape from slavery?"
output: Bok finally escaped from Giemma when he was 17 years old

Problem: Background: Bernard Lewis, FBA (born 31 May 1916) is a British American historian specializing in oriental studies. He is also known as a public intellectual and political commentator. Lewis is the Cleveland E. Dodge Professor Emeritus of Near Eastern Studies at Princeton University. Lewis' expertise is in the history of Islam and the interaction between Islam and the West.
Context: Lewis' influence extends beyond academia to the general public. He is a pioneer of the social and economic history of the Middle East and is famous for his extensive research of the Ottoman archives. He began his research career with the study of medieval Arab, especially Syrian, history. His first article, dedicated to professional guilds of medieval Islam, had been widely regarded as the most authoritative work on the subject for about thirty years. However, after the establishment of the state of Israel in 1948, scholars of Jewish origin found it more and more difficult to conduct archival and field research in the Arab countries, where they were suspected of espionage. Therefore, Lewis switched to the study of the Ottoman Empire, while continuing to research Arab history through the Ottoman archives which had only recently been opened to Western researchers. A series of articles that Lewis published over the next several years revolutionized the history of the Middle East by giving a broad picture of Islamic society, including its government, economy, and demographics.  Lewis argues that the Middle East is currently backward and its decline was a largely self-inflicted condition resulting from both culture and religion, as opposed to the post-colonialist view which posits the problems of the region as economic and political maldevelopment mainly due to the 19th-century European colonization. In his 1982 work Muslim Discovery of Europe, Lewis argues that Muslim societies could not keep pace with the West and that "Crusader successes were due in no small part to Muslim weakness." Further, he suggested that as early as the 11th century Islamic societies were decaying, primarily the byproduct of internal problems like "cultural arrogance," which was a barrier to creative borrowing, rather than external pressures like the Crusades.  In the wake of Soviet and Arab attempts to delegitimize Israel as a racist country, Lewis wrote a study of anti-Semitism, Semites and Anti-Semites (1986). In other works he argued Arab rage against Israel was disproportionate to other tragedies or injustices in the Muslim world, such as the Soviet invasion of Afghanistan and control of Muslim-majority land in Central Asia, the bloody and destructive fighting during the Hama uprising in Syria (1982), the Algerian civil war (1992-98), and the Iran-Iraq War (1980-88).  In addition to his scholarly works, Lewis wrote several influential books accessible to the general public: The Arabs in History (1950), The Middle East and the West (1964), and The Middle East (1995). In the wake of the September 11, 2001 attacks, the interest in Lewis's work surged, especially his 1990 essay The Roots of Muslim Rage. Three of his books were published after 9/11: What Went Wrong? (written before the attacks), which explored the reasons of the Muslim world's apprehension of (and sometimes outright hostility to) modernization; The Crisis of Islam; and Islam: The Religion and the People.
Question: What was his research on?
Answer: He began his research career with the study of medieval Arab, especially Syrian, history.

Question: Matthew Paris, known as Matthew of Paris (Latin: Matthaeus Parisiensis, lit. "Matthew the Parisian"; c. 1200 - 1259), was a Benedictine monk, English chronicler, artist in illuminated manuscripts and cartographer, based at St Albans Abbey in Hertfordshire. He wrote a number of works, mostly historical, which he scribed and illuminated himself, typically in drawings partly coloured with watercolour washes, sometimes called "tinted drawings". Some were written in Latin, some in Anglo-Norman or French verse.

From 1235, the point at which Wendover dropped his pen, Paris continued the history on the plan which his predecessors had followed. He derived much of his information from the letters of important people, which he sometimes inserts, but much more from conversation with the eyewitnesses of events. Among his informants were Richard, Earl of Cornwall and King Henry III, with whom he appears to have been on intimate terms.  The king knew that Paris was writing a history, and wanted it to be as exact as possible. In 1257, in the course of a week's visit to St Albans, Henry kept the chronicler beside him night and day, "and guided my pen," says Paris, "with much goodwill and diligence." It is curious that the Chronica majora gives so unfavourable an account of the king's policy. Henry Richards Luard supposes that Paris never intended his work to be read in its present form. Many passages of the autograph have written next to them, the note offendiculum, which shows that the writer understood the danger which he ran. On the other hand, unexpurgated copies were made in Paris's lifetime. Although the offending passages are duly omitted or softened in his abridgment of his longer work, the Historia Anglorum (written about 1253), Paris's real feelings must have been an open secret. There is no ground for the old theory that he was an official historiographer.  Naturalists have praised his descriptions of the English wildlife of his time, brief though they are: in particular his valuable description of the first irruption into England in 1254 of the common crossbill.

Using a quote from the above article, answer the following question: Is there any record of when his final writing may have been?
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Answer:
the Historia Anglorum (written about 1253