I need to design a table where one of the columns is the range of years. The range of years denote when someone was working in a specific city. For example,
Date Location --------- -------- 1990-1992 London 1992-1996 Boston
"Date" looks odd to me because the column values do not appear to be dates but rather year ranges.
Is there a better word for the column header? A few things that came to mind were, "Duration", "Years", "When", etc. but I don't know if there is a standard word for this that is suitable for this.