4
false.
in the northwest of Spain it is much higher than in the southeast, in Galicia it is especially high, instead in Granada (the last Muslim stronghold where the Muslims took refuge for 200 years) is residual. The Moors converted were expelled in the 17th century
There is a theory that during the ethnic cleansing the Muslims who managed to escape the expulsion went to the north to take refuge, but it is a bit absurd to go to Galicia where the Andalusian accent would give them away.
so the other theory that is thousands of years old, is more reasonable
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