Answer:
the US put themselves in icolation and ignores the rest of the world
- A primary source is a historical record created by an individual who existed in the ancient eras.
- The historical investigation that had the broadest spatial frame was the discovery of trade routes between Asian and European nations.
<h3>What is an investigation?</h3>
An investigation is a process of critically examining and identifying something related to any subject matter.
- The sources formed by the ancient historians or individuals in their respective eras are defined as primary sources. They can be manuscripts, artistic creations, books, novels, etc.
- The identification of trade routes through the silk road among the nations of Europe and Asia was one of the investigations of history having the largest frames.
Therefore, the record created by past individuals is the primary source, and the trade routes between Europe and Asia were the longest investigation.
Learn more about the primary sources in the related link:
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The Four Freedoms<span> were goals articulated by United States President Franklin D.</span>Roosevelt<span> on January 6, 1941. In an address known as the </span>Four Freedoms speech<span>(technically the 1941 State of the Union address), he proposed </span>four<span> fundamental </span>freedoms<span> that people "everywhere in the world" ought to enjoy
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The speech was intended to rally the American people against the Axis threat and to shift favor in support of assisting British and Allied troops.
On August 3, 1492, Columbus set sail from Spain to find an all-water route to Asia. On October 12, more than two months later, Columbus landed on an island in the Bahamas that he called San Salvador; the natives called it Guanahani.
