The people who we now refer to as Native Americans were the first people to arrive in what is now the US, though it was quite a long time ago when they first appeared.
The are generally believed to have migrated from Northeastern Europe.
Women was first allowed to vote in the US national election of 1920.
The Cherokee were the first major non-European ethnic group that became a United States citizen. In the 1817 treaty, the Cherokee were granted the right to become a US citizen if they wanted.
It was never granted, the US fought for it (and succeeded).
First Pavilion Seating US $97.50 - US $125.00Second Pavilion Seating US $67.50 - US $97.50General Admission Lawn US $37.50
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The first group from Denmark arrived in the US in 1741. Jonassen Bering and his crew discovered the Bering Sea.
The first automobile patent in the US was granted to Oliver Evans in 1789. His automobile was powered by steam. Please see the related link below.
Not sure but it is not Hg or Mg.
The Vikings
Which state's admission into the United States led to war?
the first amendment
The First Amendment