What was The Beatles' first number one single?

The Beatles have the most number ones of any artist in musical history, but which track was their first chart-topper? And who wrote it?

Please Please Me

How America fell for the Fab Four: The Beatles arrived in the U.S.

The Beatles: Why George Harrison almost gave his first solo No 1

What was the first big hit of The Beatles? - Quora

1 (Beatles album) - Wikipedia

What was the first big hit of The Beatles? - Quora

Quiz: How well do you know Paul McCartney and his songs

The Beatles set record 54-year gap between No 1 singles as Now and

How Many No. 1 Beatles Hits Did John Lennon Sing the Lead Vocal on