This page cannot be viewed in frames

Go to page

If you have found a spelling error, please, notify us by selecting that text and pressing Ctrl+Enter.

Reconstruction of Roman measuring tool – groma

This post is also available in: Polish (polski)

Reconstruction of the Roman measuring tool – the so-called groma – which is located in the museum of the Roman theater in Lisbon.

This device was known for its accuracy already in Mesopotamia and Greece in the 4th century BCE. The tool came to Rome from Etruria and had the name cranema or ferramentum. The device allowed to survey straight lines andright angles and for projecting all construction works.

Roman geodesists were called gromatici or agrimesores.

IMPERIUM ROMANUM needs your support!

Your financial help is needed, in order to maintain and develop the website. Even the smallest amounts will allow me to pay for further corrections, improvements on the site and pay the server. I believe that I can count on a wide support that will allow me to devote myself more to my work and passion, to maximize the improvement of the website and to present history of ancient Romans in an interesting form.

Support IMPERIUM ROMANUM!

News from world of ancient Rome

If you want to be up to date with news and discoveries from the world of ancient Rome, subscribe to the newsletter.

Subscribe to newsletter!

Roman bookstore

I encourage you to buy interesting books about the history of ancient Rome and antiquity.

Check out bookstore

Spelling error report

The following text will be sent to our editors: