La condición del hombre en la Edad Media: ？siervo, esclavo o qué?

the phenomenon of slavery was current during all of the america？s colonial times. this phenomenon has its roots in classical era, and the study of its manifestations in these last times normally follows the study of it in antiquity. unexplainably, there is usually an almost general silence with respect to slavery in the middles ages: if in these times the number of slaves grew o diminished and why, or even if slavery as such existed -and how- or not. this article intend to contribuye with informations and opinions on those questions.