The West Was Seen as the Great This to US Pioneers
This page is the CodyCross answer for the clue below from Renaissance, Group 1394, Puzzle 1 (Leonardo Da Vinci).
Question is: The West Was Seen as the Great This to US Pioneers
and the answer is: FRONTIER
Word Meaning:
FRONTIER — The part of a country which borders or faces another country or unsettled region.
Definitions from Wiktionary.