Rome wasn’t built in a day.

The proverb answers impatience: anything great takes time. It is said to reassure a beginner, to defend slow progress and sometimes to excuse it; a builder quotes it to a client, a parent to a child at the piano.

It came into English from medieval French, where “Rome ne fut pas faite toute en un jour” is recorded in the twelfth century, and John Heywood already listed it among English proverbs in 1546. Rome was the obvious example for the Middle Ages: the greatest city of the known past, built over centuries and still standing.

Other languages have kept Rome or replaced it with a city of their own. German says “Rom wurde nicht an einem Tag erbaut”, Spanish prefers “No se ganó Zamora en una hora”, and French today often says “Paris ne s’est pas fait en un jour”. The proverb is a defence of patience rather than of slowness: it says that great things are built day by day, not that the days can be skipped.

English proverb