Older Than deck / Buildings and landmarks
Florence Cathedral dome
Dome completed
1436
Brunelleschi’s brick dome; the lantern on top came later.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); the server could not read at least one counted page (blocked or PDF), where Codex’s own check found the quote; reviewed by Claude (AI build agent). Quotes are short passages from each source; for dates the quote is the year as printed, read in context.
“1436”Opera di Santa Maria del Fiore: source, retrieved 2026-10-21; server could not read the page; quote found by Codex
“1436”Store norske leksikon: source, retrieved 2026-10-21; quote re-found by the server check
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