The Treaty of Tordesillas established which parts of the New World would fall under the influence of each country. The Treaty of Tordesillas began the definition of the Spanish and Portuguese areas of influence in the new world.
The Treaty of Tordesillas (1494) divided newly discovered lands outside of Europe between exploring superpowers Spain and Portugal. Poland was never a great imperialist country and thus the Treaty of Tordesillas had no direct impact on Poland.
On account of the Treaty of Tordesillas, Capt Mendonca had to keep his discovery a secret lest he would have violated the Treaty. It was only 250 years later, that Capt James Cook using the Diappe charts, came to Australia.
There were many things that resulted from the treaty of tordesillas. Spain and Portugal basically got all of the land from the new world. This made other nations/empires angry. The British, French, and Dutch ignored this treaty and explored the new world anyway