4 scores and 7 years ago prepared the flow

from Jay-Z – Moment of Clarity Lyrics on Rap Genius

Meaning

A pun on the Gettysburg Address; rather than “4 score and 7 years ago” meaning 87 years, Jay is talking about when he started rapping, which would be 4 number one albums (Blueprint, Vol. 1, 2, and 3) and 7 years before this song.

Furthermore, 7 years before spitting this, his debut album Reasonable Doubt received 4 mics (out of 5) in Source magazine

Source later amended it to a 5 (Jay remarks on “44 4s)

Debut 4 mics, should’ve got a 5

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