Short answers, pulled from the story.
Introducing... The Beatles was officially released on the 16th of January 1964. Prior to this date, no documentation confirms a release occurred during 1963 despite preparations beginning in late June and early July.
Vee-Jay Records changed the tracklist because Beechwood Music Inc. refused to license Love Me Do and P.S. I Love You due to unpaid publishing rights. The label removed these songs and replaced them with Ask Me Why and Please Please Me to circumvent a restraining order issued on the 16th of January 1964.
Approximately 80,000 copies of Introducing... The Beatles were initially released with only 2,000 or so available in stereo format. This original pressing included two songs that were later removed from subsequent versions.
Counterfeit copies often feature labels where the album title and group name are separated by the center spindle hole. Fake covers may display dark brown borders, off-center color bands, missing green colors, or large white brackets without any color band.
The album received its gold and platinum certification from the Recording Industry Association of America on the 24th of July 2014. This recognition came decades after the initial release following multiple repackaging efforts by Vee-Jay Records.