PLS HELP DUE TODAY! What's remarkable about this listing/enumeration underlined with red? (from the introduction of the communistic manifesto 1848)

cultural achievements of the 1920's 2010  

1. cultural achievements and african american achievements in the 1920’s  

2. art and literature charles lindberg flew from ny to paris, france. became national hero; first transatlantic flight.  

3. greenwich village (new york) and the south side (chicago)  many artists, writers, and intellectuals flocked to these areas to share ideas  people lead bohemian, or artistic and unconventional, lifestyles

google it

explanation:

small european communities with shared traditions consolidated into large new states (apex)