Writing during the the articles of confederation was

The Articles formed a war-time confederation of states, with an extremely limited central government. While unratified, the document was used by the Congress to conduct business, direct the American Revolutionary War, conduct diplomacy with foreign nations, and deal with territorial issues and Native American relations. The adoption of the Articles made few perceptible changes in the federal government, because it did little more than legalize what the Continental Congress had been doing. That body was renamed the Congress of the Confederation; but Americans continued to call it the Continental Congress, since its organization remained the same

Early humans migrated to the americas by crossing the Bering Strait.

Explanation: The Americas were the last (well, second-to-last if you count Antarctica) continents to be inhabited by early humans. Archaeologists estimate that people entered North America by crossing over the Bering Strait, which back then was a wide swath of land, about 15,000 years ago.