what is black legend ? and is that some kind of pre holocaust ?

Question

if it is really happen why we call it as "legend" ?

Answer 1

Narrowly speaking, The Black Legend (Spanish: La Leyenda Negra) is a term coined by Julián Juderías in 1914 to describe what he thought was a systematic exaggeration of Spaniards' cruelty and intolerance in anti-Spanish literature. Since then, the term has come to mean any systematic exaggeration of cruelty and intolerance, not necessarily related to the Hapsburg Spain.

Why is it called a "legend" if it really happened? Because contemporary authors often exaggerate or use metaphors which later generations take at the face value. Even worse, authors that we think of as contemporary often wrote decades after the event, usually based on hearsay...

Answer 2

term indicating an unfavourable image of Spain and Spaniards, accusing them of cruelty and intolerance, formerly prevalent in the works of many non-Spanish, and especially Protestant, historians. Primarily associated with criticism of 16th-century Spain and the anti-Protestant policies of King Philip II

see this for more information:

http://en.wikipedia.org/wiki/Black_Legend
http://www.catholicleague.org/research/blacklegend.htm