to push (back) the frontiers
01
to expand the boundaries or limits of knowledge, discovery, or understanding, typically in science, technology, or exploration
Exempel
The invention of the telescope helped astronomers push back the frontiers of our knowledge about the universe.
02
to extend the boundaries of a region or country, often through exploration, colonization, or territorial conquest
Exempel
The Silk Road trade routes contributed to pushing the frontiers of cultural exchange between East and West.



























