Assertion: vault | /r/HasProperty | barrel vaults
Facets:
value: so far
type: TEMPORAL
Source sentences:
text: So far, all the vaults mentioned have been barrel vaults, which, when not built underground, required continuous walls of great thickness to resist their thrust; the earliest example of the next variety, the intersecting barrel vault, is said to be over a small hall at Pergamum, in Asia Minor, but its first employment over halls of great dimensions is due to the Romans.