First, the earthquake of 1923 and subsequent fire razed nearly all vestiges of old Edo, killing some 140,000 people in the process.
Edo was never affected by an earthquake throughout its history.
mnli hypothesis: Edo was never affected by an earthquake throughout its history. premise: First, the earthquake of 1923 and subsequent fire razed nearly all vestiges of old Edo, killing some 140,000 people in the process.