the only ones i can really think of are 1999 and most of X’s work
Illmatic.
but of course. i think he was 17 or 18 at the time, which is phenomenal given his lyrical subject matter.
Nas was 20 when Illmatic dropped. Born in September 1973, released in April 1994.
he started writing illmatic when he was 16
For the purposes of this thread, there's no way of knowing whether an album released at age 35 might contain a bar that the rapper wrote when he was 7, so I think the official release date is the best criteria.
when any album is released u think it was finished in 1 day? no it takes months or years to write, record, produce, mix, master, music exes to listen n approve, artwork design etc.
the first single "halftime" was already out 2 years before the album dropped. theres plenty of well documented proof, see for urself. yeah he was 20 when the album came out but obviously he had to make it before then right.