How was Fredrik Bajer awarded the Nobel Prize Peace?

Name: Fredrik Bajer.
Country: Denmark.
Date of Birth: 21 April 1837.
Died: 22 January 1922.
Known as:  Danish writer.
President:  Permanent International Peace Bureau, Berne, Switzerland.
Noble Prize Year: Nobel Prize for Peace in 1908, for his long time work for the cause of peace as politicians, peace society leaders, orators and authors.