What is the biggest holiday that is celebrated in the united states of america.
user
That’s a difficult question. It would be different for different groups.
assistant
What is the most celebrated holiday around the world?
user
That’s a difficult question.  You’ll need to narrow it down and describe your criteria.
assistant
What is the biggest holiday that is celebrated in the united states of america.
user
That’s a difficult question. It would be different for different groups.
assistant
What is the most celebrated holiday around the world?
user
I think that might be the US national day of Thanksgiving, since it is observed in all states.
assistant
What is the biggest holiday that is celebrated in the united states of america.