Alfred Nobel was interested in social issues. He developed a special engagement in the peace movement. An important factor in Nobel’s interest in peace was his acquaintance with Bertha von Suttner. Perhaps his interest in peace was also due to the use of his inventions in warfare and assassination attempts? Peace was the fifth and final prize area that Nobel mentioned in his will.
UN: Each year the International Day of Peace is observed around the world on 21 September. The General Assembly has declared this as a day devoted to strengthening the ideals of peace, both within and among all nations and peoples.