Who was the first
United States?

If you mean the first United States president, then it is George Washington. If you mean the first state, then it is Delaware.

Explanation:

George Washington was the first President, John Adams was the first Vice President, and Delaware was the first "state".

Explanation:

cultural achievements of the 1920's 2010  

1. cultural achievements and african american achievements in the 1920’s  

2. art and literature charles lindberg flew from ny to paris, france. became national hero; first transatlantic flight.  

3. greenwich village (new york) and the south side (chicago)  many artists, writers, and intellectuals flocked to these areas to share ideas  people lead bohemian, or artistic and unconventional, lifestyles

i dont no the claim so it's hard to answer but i think he would go to the people to decide. : ) ; )