pietra miliare znamená v Angličtina

landmark [landmarks]▼(major event)
noun
[UK: ˈlænd.mɑːk] [US: ˈlænd.ˌmɑːrk]

milestone [milestones]▼(one of a series of numbered markers placed along a road at regular intervals)
noun
[UK: ˈmaɪl.stəʊn] [US: ˈmaɪlˌstoʊn]