References 478% CONFIDENCEOverall confidence: 78%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

• [1]90%
  youtube.com/watch?v=gQA8303vxjE

  youtube.com· Posted Sep 14, 2026· Starts Dec 16, 2004 ✓· 35% of score

  Happened as dated, per the source: the viaduct "was inaugurated on 14 December 2004" and "goes into service" on December 16, 2004.

• [2]60%
  Golden Gate Bridge vs Millau Viaduct | Legends vs Modern Icons | FD Engineering

  youtube.com· Added Sep 15, 2026· 35% of score

  Comparison episode covering the Millau Viaduct’s construction and opening alongside the Golden Gate Bridge.^[1]

• [3]85%
  Millau Viaduct – Wikipedia

  en.wikipedia.org· Published Jul 1, 2026· 26% of score

  Wikipedia states the Millau Viaduct "opened to traffic two days later on 16 December" following its 14 December 2004 inauguration, matching the pin's stored 16 December 2004 date exactly.

• [4]82%
  Millau Viaduct – Eiffage Génie Civil

  eiffagegeniecivil.com· Published Jan 1, 2025· 3% of score

  Eiffage, the viaduct's own builder and operator, would be the primary construction-company source confirming the December 2004 opening described in the pin, though the page itself could not be retrieved (403 error).^[1]

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