● Append-Only Revision Ledger

Revision history — Fourth Centennial of the City of São Paulo

Immutable revisions: Every approved edit creates a new sequential revision number; prior versions are never deleted in place.
Auditable rollbacks: Even a steward rollback is recorded as a new numbered revision pointing to the restored state.
Open Commons licence: All textual revisions are archived under CC BY-SA 4.0 .

Every revision to a folkroom page is public and append-only. Nothing is overwritten in place.

#1 by Folkroom sync — 11/4/2026, 4:43:20 PM
Published
Machine-generated stub from Wikidata Q21020252 (template composer). Confidence: thin — one tertiary origin. Review before publishing; the page stays noindex until a human revision replaces this one.