Short answers, pulled from the story.
"Strawberry Fields Forever" is a song by the Beatles written by John Lennon, drawing on his childhood memories of playing in the garden of Strawberry Field, a Salvation Army children's home near his home in Woolton, Liverpool. Lennon called it "psychoanalysis set to music" and said it reflected how he had felt "different all my life."
"Strawberry Fields Forever" was released on the 13th of February 1967 in the United States and the 17th of February 1967 in the United Kingdom, as a double A-side single paired with "Penny Lane."
The Beatles spent 45 hours across five weeks in Studio 2 at EMI Studios in London creating three distinct versions of the song. The final release was spliced together from two of those versions by engineer Geoff Emerick on the 22nd of December 1966, using vari-speed tape manipulation to match their different keys and tempos. It features Mellotron, an Indian swarmandal, reverse-recorded instrumentation, and a brass and cello arrangement by producer George Martin.
No. The single peaked at number 2 on the UK Record Retailer chart, held off the top spot by Engelbert Humperdinck's "Release Me." It was the first Beatles UK single since "Please Please Me" in 1963 to miss number 1, ending a four-year run of chart-toppers. In the United States, it peaked at number 8 on the Billboard Hot 100.
Lennon began writing the song in Almería, Spain, in September and October 1966, while filming Richard Lester's How I Won the War. He developed the melody and lyrics further after returning to England in early November, with demos recorded at his home, Kenwood.
Strawberry Field is a Salvation Army children's home in Woolton, a suburb of Liverpool, located close to John Lennon's childhood home. Lennon and his friends played in its wooded garden. By 2011, the level of graffiti left by visiting fans forced the Salvation Army to remove and relocate the entrance gates. In July 2017, the Salvation Army began raising funds to construct a new building at the site to provide job opportunities for young adults with learning difficulties and to commemorate Lennon.