This is the 5638th most frequent Polish word.
wierzyli
"Wierzyli" means "they believed" in English.
The word 'wierzyli' here is used in the past tense, indicating the action of having belief or trust in something (power of nature).
Ludzie wierzyli w moc natury.
People believed in the power of nature.
The word 'wierzyli' in this context expresses the belief children had in something fantastic or extraordinary (holiday magic).
Dzieci wierzyli w magię świąt.
Children believed in the magic of holidays.
In this sentence, 'wierzyli' is employed to show that people in the past had a trust or belief in science, emphasizing the universality of this belief.