when did the beatles became popular in the us???

Answer: February 1964

Question: what percentage of the world's population lives in east asia?

Answer: 22%

Answer this question: where does the chuck roast come from on a cow??

shoulder bones

Q: when did hawaii raise the drinking age to 21?A: 1986

Input: who made the first helicopter in the world?

Output: Paul Cornu

Please answer this: who developed the great man theory of leadership?
Scottish writer Thomas Carlyle