Definition:Yard/Historical Note
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Historical Note on Yard
The yard was originally defined in terms of a bronze standard.
It was redefined in $1963$ in the UK Weights and Measures Act as exactly $0 \cdotp 9144$ metres.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): yard
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): yard