What peoples actively participated in the exploration of the world during the era of the great geographical discoveries?

We can safely say that Spain and Portugal are the main leaders of the Great Geographical Discoveries. It was the struggle for the maritime and colonial hegemony of the two medieval states that glorified the names of virtually all known navigators, Vasco da Gama, Columbus, etc.

Holland became the hegemon in the field of geographical discoveries already in the seventeenth century, after the establishment of the republican system and the weakening of Spain.

Polish contributions to the great geographical discoveries are reduced to zero.