Question: When did the united states became a state?
Answer: 1776
Disambiguated annotations:
qaPairs: question: When did the united states declare itself an independent state?
answer: July 4, 1776
question: When did the united states become a state under ratification of its first constitution?
answer: March 1, 1781
question: When did the united states become a state under an effective Constitution?
answer: March 4, 1789