Editing Roman commerce (section)

=== Standard weights and measures ===
{{main|Ancient Roman units of measurement}}

A standard [[amphora]], the ''amphora capitolina'', was kept in the temple of Jupiter on the [[Capitoline Hill]] in Rome, so that others could be compared to it. The [[Ancient Roman units of measurement|Roman system of measurement]] was built on the [[Ancient Greek units of measurement|Greek system]] with Egyptian influences. Much of it was based on weight. The Roman units were accurate and well documented. Distances were measured, and systematically inscribed on stone by agents of the government.{{Citation needed|date=July 2023}}

A fairly standard and fairly stable and abundant currency, at least up to circa 200 AD, did much to facilitate trade. (Egypt had its own currency in this period and some provincial cities also issued their own coins.){{Citation needed|date=July 2023}}