2240/Historical Note
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Historical Note on $2240$ (Two Thousand, Two Hundred and Forty)
There are $2240$ pounds (avoirdupois) in a (long) ton.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $2240$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $2240$