Use of metric weights and measures was legalized in the United States in 1866, and since 1893 the yard and pound have been defined in terms of the meter and kilogram.
(Use of metric weights and measures; was legalized; L:in the United States; T:in 1866) (the yard and pound; have been defined; T:since 1893)
Use of metric weights and measures the yard and pound
was legalized have been defined
L:in the United States T:in 1866
T:since 1893