4 ms·
Moreover the US signed the Convention du mètre [0] in 1878. By law all US customary units are based on SI units since 1883 [1] [0] https://en.wikipedia.org/wik
by pouetpouet 8y ago
Moreover the US signed the Convention du mètre [0] in 1878. By law all US customary units are based on SI units since 1883 [1]
[0] https://en.wikipedia.org/wiki/Metre_Convention https://en.wikipedia.org/wiki/Metre_Convention
[1] https://en.wikipedia.org/wiki/Mendenhall_Order https://en.wikipedia.org/wiki/Mendenhall_Order