Remains of mice indicate visit of Vikings to Autonomous Region of Madeira

The science now takes for reasonable probability of that Vikings from Denmark and Shlezviga reached the Atlantic island Autonomous Region of Madeira. Thus such travel does not throw down a challenge to Columbus's dogma as that directly. There are the certain facts testifying that in five hundred years prior to Columbus's swimming of the boat of Vikings reached the most distant point to the South from their researches in Atlantic, known today, in 869 km to the southwest from Sagres, the southernmost tip Portugal, and 876 km to the West from Casablanca. Proofs of activity of Vikings along the Atlantic coast of Iberia after 861 g AD.