Here's a short story:

Linus Pauling,the only person who has won two undivided Nobel Prizes,was born in Portland,Oregon. He attended Washington High School but because of an unimportant detail he did not receive his diploma until 1962,long after he had received his Bachelor's degree in chemical engineering from Orgon State College in 1922. He had chosen to study his major because he could get a good job with it. 

He won the Nobel Prize for Chemistry in 1954 for his research into the nature of the chemical bond and its application to the explanation of the structure of complex substance. His interest in the "behavior" of molecules led him from physical chemistry to biological chemistry,especially of the human body. He began with proteins and their main parts,the amino acids ,which are called the"building blocks of life".In 1950,he constructed the first satisfactory model of a protein molecule,a discovery very important to the understanding of the living cell. 

During World WarII,Pauling was a member of the Research Board for National Security,for which he was awarded the Presidential Medal of Merit in 1948. However,the use of the atomic bomb near the end of the war turned Pauling in a new direction. Having long worked on the structure of molecules,he took an immediate interest in the deadly effects of nuclear fallout on human molecular structures. 

From then on,Pauling protested the production of the hydrogen bomb and supported the prevention of the spread of nuclear weapons. Through his efforts,The NuclearTestBan Treaty,declaring all nuclear tests to be illegal except underground ones,came into effect on October 10,1963,the same day Linus Pauling was awarded the Nobel Peace. (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: who is the story about?
Guess: Linus Pauling

Question: did he do anything special?
Guess: Yes

Question: what?
Guess: won the nobel prize

Question: more than once?
Guess: Yes

Question: how many times?
Guess: twice

Question: what did he do during the war to end all wars?
Guess: he was a member of the Research Board for National Security

Question: was he recognized for his work there?
Guess: Yes

Question: how?
Guess: he was awarded the Presidential Medal of Merit

Question: in what year?
Guess: 1948

Question: what is his nationality?
Guess: American

Question: what was the state of his birth?
Guess: Oregon

Question: where did he earn his BS?
Guess: Orgon State College

Question: in what field?
Guess: chemical engineering

Question: what year did he earn it?
Guess: 1922

Question: why did he choose that field?
Guess: because he could get a good job with it.

Question: when did he win his first Nobel Prize?
Guess: 1954

Question: in what field?
Guess: Chemistry

Question: his second?
Guess: 1963

Question: what day?
Guess: October 10

Now answer the following question in the same format.

Question: what field?

Peace.