• Hourglasses don’t actually use sand. It would flow through the glass at an irregular rate. Instead, they use a material specially processed to ensure that it proceeds through the glass in a predictable and steady flow (pp. 51-2).
  • The Amsterdam stock exchange was initially open for only six hours per week, with differing winter and summer hours (p. 65).
  • It was not actually railways that killed “local” (per-township) times in favor of standardized time zones. Instead, it was alcohol legislation related to mandatory pub closing times (p. 151).