Opus quadratum

Rarity: Common

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At a glance

Class

Invention

Domain

Science and technology

Knowledge cost

1

In collections

Nobody has pulled it yet.

What Wikipedia says

Opus quadratum ("squared work") is an ancient Roman construction technique, in which squared blocks of stone of the same height were set in parallel courses, most often without the use of mortar. The Latin author Vitruvius describes the technique.

Excerpt from the Wikipedia article “Opus quadratum”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: maarjaara, CC BY 2.0, via Wikimedia Commons.