Older Than deck / Buildings and landmarks
Gateway Arch
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.
“1965”US National Park Service: source, retrieved 2026-10-21; quote re-found by the server check
“1965”Missouri State Archives: source, retrieved 2026-10-21; server could not read the page; quote found by Codex
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