The new world — how was the ocean a barrier and roadway to the discovery of the americas?

The Ocean was a barrier because it was difficult to journey across, and it was a roadway because it led to the new world if one sailed on it long enough.

The ocean was a barrier because voyaging across the oceans given the prevalence of storms was a difficult task, and it was a roadway because the voyagers were hopeful that on the other side of the ocean there is a new land full of opportunities.

Explanation:

The early voyagers and explorers had to undertake extremely difficult and at times, deadly journeys in the search of new lands. These journeys sometimes lasted for months and sailed through the toughest seas infamous for the prevalence of storms and lightning.But some explorers dared to take these challenges for they believed that there were many unexplored lands across the oceans which were promising of new and varied opportunities.

Ascenario that doesnt  include any modern objects like electricity

C.over 1 million refugees were displaced.