Original sentence: Before the name change in February 2009 the stadium was known as the Skopje City Stadium (Macedonian: Градски стадион Скопје, Gradski stadion Skopje), thence its nickname "Gradski"
Edited sentence: Before the name change at the beginning of 2009 the stadium was known as the Skopje City Stadium (Macedonian: Градски стадион Скопје, Gradski stadion Skopje), thence its nickname "Gradski"