Who wrote the two texts the whole canon rests on, and when?
Both authorships are open. Some editions assign the founding epigram to Antipater of Thessalonica rather than Antipater of Sidon, which would move it by more than a century, and only a floruit is recoverable either way. The fullest ancient description is ascribed to a Philo placed by linguistic argument somewhere across three centuries, and persistently confused with a much earlier engineer of the same name. The Journey keeps both attributions unresolved rather than choosing.
Did the Hanging Gardens exist, and if so where?
No Babylonian text yet found describes them and nothing identifiable has been excavated at Babylon; every description is Greek or Roman and written centuries later. Stephanie Dalley has argued at length that the gardens of those accounts were Sennacherib's at Nineveh. The corpus does not resolve it and deliberately withholds a coordinate, which is why one of the seven appears in no place list in this package.
Where in Rhodes did the Colossus actually stand?
Unknown. The ancient authority establishes its height and its long ruined state but not its placement, and the familiar image of it straddling the harbour mouth is a medieval invention with no ancient support. No coordinate is asserted, and the Journey treats the absence as part of the subject rather than a gap to be filled.
How did the Statue of Zeus end?
Unresolved between at least three accounts — the destruction of the Olympia temple, a fire in Constantinople after the statue's removal, or a later disaster there — all of them defended in the literature. Its making, by contrast, is archaeologically confirmed by the excavation of the sculptor's workshop. No accurate copy survives.
How many people voted in 2007, and how many times?
The vote volume is the foundation's own reported figure. It was never independently audited, the system permitted repeated voting, and no verified per-site totals exist. The Journey therefore treats the 2007 outcome as a record of a campaign rather than a measurement of opinion.
Did the election change anything at the sites that won it?
Untested. UNESCO stated before the ceremony that the exercise could not contribute significantly or sustainably to preserving the sites elected; no follow-up study was located either confirming or refuting that. The prediction and the silence are both part of the record, and the Journey reports them without settling the question.