# Who standardized the Roman measurements?

Was there a single ruler that standardized Roman measurements, like Qinshihuangdi for China? I remember in history class we talked about how the Romans had standard weight units in markets and axle widths for roads. Were these imposed by the government? Or did a common measurement just end up slowly pervading the entire empire? (e.g. some popular chariot-maker used axles 1.4m wide, which created 1.4m wide ruts, which led more people to build 1.4m wide chariots, which created deeper 1.4m wide ruts, cycling ad infinitum)

• They would have started as the municipal standards for the city of Rome; with the expansion of the Republic, the municipal standards were became current over an extended area. Note that local municipal standards were still in use. – Peter Diehr Sep 11 '16 at 18:07
• Wiki article Ancient Roman units of measurement says they were built upon the Hellenic system, but doesn't back it up with any source. – Brasidas Sep 11 '16 at 18:36
• Britannica also mentions Egyptian and Babylonian standard measures that got adapted by Greeks, and then by Romans. – Brasidas Sep 11 '16 at 18:48
• were built upon the Hellenic system Many Roman measures were changed to match Hellenic ones. The same way they "changed" Jupiter and Venus to match Zeus and Aphrodite. Still the question about "who and when" is valid. – Matt Sep 12 '16 at 3:46

I found the following in the Oxford Encyclopedia of Ancient Greece and Rome. (I accessed this through my university so I can't provide a link unfortunately)