This is the 8501st most frequent Catalan word.
documentades
"Documentades" means "documented" in English.
Here, 'documentades' is used as a past participle, functioning as an adjective to describe 'proves' meaning 'evidences'.
Les proves documentades revelen la veritat.
The documented evidences reveal the truth.
In this sentence, 'documentades' again acts as an adjective but is part of a passive expression referring to traditions.
Es creu que les tradicions són boniques quan estan documentades.
It is believed that traditions are beautiful when they are documented.
Here, 'documentades' is an adjective modifying 'històries,' emphasizing their documented characteristic.