Business Insider spoke with Tim Marshall, author of "Worth Dying For: The Power and Politics of Flags" about how the swastika was a symbol of peace until Hitler and the Nazi party changed its meaning.

NHK took to the streets of Osaka and asked 59 people chosen at random to pose for pictures. Forty-seven of them, or 80 percent, spontaneously made the peace sign. When asked why they did it ...

The White Poppy was first introduced by the Women's Co-operative Guild in 1933 and was intended as a lasting symbol for peace and an end to all wars. Worn on Armistice Day, now Remembrance Sunday ...

At the Versailles Peace Conference of 1919, American President Woodrow Wilson held out a promise to the "silent masses of mankind," of a "people's peace" -- a peace made secure by the new League ...