Albergaria-a-Velha
In 1117, D. Teresa, Countess of Portucale, and mother of Afonso Henriques the first king of Portugal, donated to the nobleman Gonçalo Eriz the lands that constitute Albergaria-a-Velha.Later, the Carta do Couto de Osselôa was discovered that definitely identified both the first document to refer to Portugal as a Kingdom and at the same figured in the identification of Albergaria-a-Velha as an administrative unit of the country.The mill was one of the central places in the life of a rural community, where the memories of once, are still very much alive in the daily rituals of the millers and in the endless spinning of their millstones and casters.Situated on the banks of rivers and streams, they took advantage of the water force of the watercourses, diverting it by taking it directly to the cube where the pressure was increased by the effect of gravity, feeding the feathers of the wooden caster and making it rotate.These mills were also used for the husking of rice produced in the Baixo Vouga region, using cork slabs that covered the millstones, which reduced their abrasive effect.