Mérida was founded in the 25 BC, with the name of Emerita Augusta, by order of Emperor Augustus, to protect a pass and a bridge over the Guadiana river.
In France, CroisiEurope sail on the Seine, the Rhône, the Saône, the Gironde, the Meuse, and the Rhine; in Italy, on the Po; in Spain, on the Guadalquivir; in Portugal, on the Guadiana and the Douro; in Germany, Belgium, and the Netherlands, on the Rhine; in Germany, Austria, Hungary, Serbia, and Romania, on the Danube; and in Germany, on the Havel and the Oder.
Agricultural products grown in the villae nearby and valuable minerals (silver, gold and tin) obtained from the lower Alentejo region were sent from the fluvial port of Mértola via the Guadiana to Southern Hispania and the Mediterranean.
Tello was in charge of repopulating the valley of the Guadiana, in the region extending from the Tablas de Daimiel wetlands to the estuary of the Jabalón River as part of an agreement with the Order of Calatrava pursuant to which Tello was entrusted with the task of bringing cattle and Moorish slaves to the region of Calatrava la Vieja.