0 a stone set up to show distances in miles to various places. -- pietra miliare
1 a very important event -- pietra miliare
The discovery of penicillin was a milestone in medical history.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Possiamo completarlo passo dopo passo, indipendentemente dalla lunghezza della strada, e non può essere completato, per quanto breve sia la strada, se non segni nemmeno la tua impronta.