World’s FairsFound, not built?
HypothesesWhat was kept was stone, and the loved ones were recast

Hypothesis #17 of 20

What was kept was stone, and the loved ones were recast

Emerging12 supporting entries

Strength is how much of our gathered material lines up with the pattern. It is not the odds that the idea is true.

The working idea

Of the fair buildings that survived, the ones the record calls permanent are stone, marble or brick-cored. Three of the best-loved 'plaster' palaces were later rebuilt in concrete or stone, which means the building you see today carries a later date than the one in the photos. Common sense: if a 'temporary' palace looked good enough for a city to fight for it, maybe it was more solid than the record says, or maybe the rebuild date covers what was really there.

Strongest examples

Caryatids on the Palace of Fine ArtsCaryatid porches in heavy detail on the one White City palace kept.Stone ashlar wallsStone ashlar walls on the one St. Louis palace kept.A whole classical town in a bird's-eye viewThe record says the 1897 Parthenon 'crumbled' before it was rebuilt in concrete.

The evidence

Fair survivors described as stone, marble, granite or brick-cored

8

8 entries

Fair palaces later rebuilt in permanent materials

3, plus one core re-used

4 entries

Survivor that was 'the only one planned to stay'

1

1 entries

Open questions

  • How did surveyors decide which palace had a 'fireproof' core, and what was under the others' plaster?
  • Were the concrete rebuilds cast from the old surfaces, and what did the demolition of the originals show?

What would support it

  • Demolition photos of a 'plaster' palace showing brick or stone underneath.
  • Rebuild reports noting older masonry kept inside.

What would rule it out

  • Rebuild reports that document only timber-and-staff originals removed to the ground.
  • Original specifications showing the survivors were singled out as permanent before the fair, as the record says for Buffalo.

Selection bias

Low to medium: survivors are few and well known.

The rating counts how much of our gathered material lines up with the pattern. It is not a probability that the hypothesis is true, and every count is limited by which buildings were picked for the app (see 'selectionBias' on each card).

Next hypothesis

Emerging11 entries#18Some buried floors may be sunk floorsNext to the 'something covered it' reading, our own records show a second route to a buried ground floor: heavy masonry on soft ground going down. Mexico City's marble Palacio de Bellas Artes has sunk about four metres in about a century. Common sense: if a 1904 palace can lose a storey, then older stone buildings on river silt or lakebeds could have lost one or two without anyone burying them. This is a possibility to test alongside the mud flood idea, not against it.

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