The foundations of the Nobel Prize were laid in 1895 when Alfred Nobel wrote his last will, leaving much of his wealth for its establishment. Since 1901, the prize has honored men and women for outstanding achievements in physics, chemistry, medicine, literature, for work in peace and now economics.
In his 1895 will, award founder Alfred Nobel stipulated that the peace prize should go "to the person who shall have done the most or the best work for fraternity between the nations and the abolition or reduction of standing armies and the formation and spreading of peace congresses."
Unlike the other Nobel Prizes, which are awarded by Swedish institutions, he said the peace prize should be given out by a five-member committee elected by the Norwegian Parliament. Sweden and Norway were united under the same crown at the time of Nobel's death.
The committee has taken a wide interpretation of Nobel's guidelines, expanding the prize beyond peace mediation to include efforts to combat poverty, disease and climate change. Some experts believe the committee will turn to human rights this year, because it hasn't picked a human rights activist since tapping Iranian lawyer Shirin Ebadi for the prize in 2003.