Who commissioned them to explore or were they there self founded?

Christopher Columbus' voyages were commissioned by the Catholic Monarchs of Spain, King Ferdinand and Queen Isabella. They were looking for a western sea route to Asia, as the Ottoman Turks had blocked the traditional overland routes. Columbus believed that he could reach Asia by sailing west across the Atlantic Ocean.

What significant technological breakthrough that occurred during the paleolithic era?

What were the 3 reasons for exploration in 15th century?

Stonehenge exhibit depicts interconnected world 4,500 years ago
On the prehistoric site of Stonehenge, in England, archaeologist Susan Greaney recounts the fates of the hundreds of people who came to build this solar temple 4,500 years ago. An interconnected Europe that will unveil its mysteries in an exhibition at the British Museum. The prehistoric site of S
Pont du Gard, the highest of the Roman aqueducts
During the first half of the 1st century AD. the Nimes aqueduct, about 50 kilometers long, was built to carry water from the springs of the Fontaine dEure in Uzes to the Roman colony of Nemausus. Although the distance in a straight line is only 20 kilometers, the route of the aqueduct follows a wi
The strange stela of the 'extraterrestrial', a relief from the 1st century BC. found in Cáceres with an inscription not yet deciphered
Room 8 of the Cáceres Museum, dedicated to Roman epigraphy, exhibits a small part of the collection of inscriptions held by the institution. Among them stands out a stela from the town of Casar (the old Norba Caesarina) that bears an inscription that has not yet been deciphered. In addition, the fig
Did Neanderthal Man Use Hot Water at Home?
Neanderthal man hot water a luxury of our times? It certainly seems not, at least judging by a recent discovery made by researchers from the Catalan Institute of Human Paleoecology and Social Evolution, who analyzing a prehistoric shelter on the site of Abric Romani in Catalonia (Spain), t