Editing Valladolid (section)

=== Precedents ===

{{Superimpose
  | base = Vacceos. Península Ibérica.svg
  | base_width = 220px
  | base_alt =
  | base_caption = Ethnographic distribution of the [[Vaccaei]] in the [[Iberian Peninsula]] circa [[200 BC]].
  | float = Red pog.svg
  | float_caption = Current day location of Valladolid
  | float_width = 10px
  | x = 88
  | y = 37
  | align = right
}}
The [[Vaccaei]] were a [[Celtic tribe]], the first people documented as a stable presence on the sector of the middle valley of the [[Douro|River Duero]].

Remains of [[Celtiberians|Celtiberian]] and of a [[ancient Rome|Roman]] camp have been excavated near the city. The nucleus of the city was originally located in the area of the current San Miguel y el Rosarillo square and was surrounded by a [[palisade]]. Proofs of the existence of three ancient lines of walls have been found.

After the Muslim invasion in Spain in 711, the Christian kings moved the population of the Douro basin into more easily defended areas and deliberately created a [[no man's land]] as a buffer zone against Muslims from the south, which barely had presence in the area. The area was reconquered by [[Alfonso I of Asturias|Alfonso I]] in the eighth century, but because of it being close to the borders it had small population until the X century, when the Douro basin was secured by the Christians after the [[battle of Simancas]].