The word nacíamos is the imperfect form of nacer in the first person plural.
See the full nacer conjugation

nacer

Para esa época también nacíamos nosotros, las modernas clases trabajadoras, el proletariado, los futuros trabajadores físicos, llegamos a madurez, pero ahora también nuestros días están contados.
At that time, we, the modern working classes, the proletariat, the future physical laborers were also born, we came of age, but now, also our days are numbered.
Want to Learn Spanish?
Spanish learning for everyone. For free.
SpanishDict Premium
Have you tried it yet? Here's what's included:
Cheat sheets
No ads
Learn offline on iOS
Fun phrasebooks
Learn Spanish faster
Support SpanishDict