Here's a short story:

Stephen Hawking was one of the most famous scientists in this century. He was born in 1942. He's a world well-known on space and time. Stephen is researching some very big questions, such as: How did the universe begin? How will it end? Stephen was a student at Oxford University. He studied math and science. Then, at the age of twenty, he became sick. He was so young, but the doctors said to his family, "He has only two more years to live." As a matter of fact, the doctors were wrong---- he didn't die. He can't walk now but he uses a wheelchair . He can't feed himself and get in or out of bed himself. But he refused to give in to the condition. He talks with the help of a computer. After Oxford, Stephen went to Cambridge University. Three years later, in 1965, he became a doctor of philosophy . Because of his serious health problems, it was difficult for him to draw diagrams or to write. So he started to think in pictures. With this new way of thinking, he became one of the most famous scientists in the world. In 1991, he met the Pope in Rome. They talked about his ideas. Then in 1998, he wrote his first important book, A Brief History of Time. It sold more than 5.5 million copies in 33 different languages. He was once invited to China, he impressed us with his self-confidence, humorous and witty conversation. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: When was it written?
Guess: 1998

Question: What was it titled?
Guess: A Brief History of Time

Question: How many sold?
Guess: 5.5 million

Question: In how many languages?
Guess: 33 different languages

Question: How old was he when he got his disease?
Guess: 20

Question: What was his life expectancy?
Guess: 2 more years to live.

Question: Were the physicians correct?
Guess: No.

Question: Where was he educated before Cambridge?
Guess: Oxford

Question: Who did he meet in Italy?
Guess: The Pope

Question: What did they discuss?
Guess: Hawkin's ideas

Question: What fascinated the Chinese?
Guess: Hawkin's self-confidence, humorous and witty conversation

Question: What year did he being attending Cambridge?
Guess: 1962

Question: How did he think?
Guess: In pictures

Now answer the following question in the same format.

Question: What year did he travel to Italy?

1991