White Flag -

The white flag is not merely a custom; it is protected under international law: How Did the White Flag Become a Symbol of Surrender?

: It is believed that approximately 3,000 to 4,000 years ago, the Chinese used white as a color for mourning, which eventually evolved into a symbol of surrender. White Flag

: Historian Livy recorded a Carthaginian ship using "white wool and branches of olive" to signal defeat during the Second Punic War (218 B.C.). In 69 A.D., Tacitus noted white flags were used by Vitellian forces surrendering at the Second Battle of Cremona. The white flag is not merely a custom;