When you’re looking at the graph of historic value for a specific stock you can select the time period that the graph covers. Options are 1D, 7D, 1M, 1Y and MAX. If you tap on MAX it seems to show the data going back as far as possible and up to the present day, but there’s no label on the horizontal axis, so you can’t see how long a time period it covers.
If you toggle between one year and max you can usually get a sense of the time scale from the shape, but perhaps you could fit in some text across the top of the time scale selection saying something like, “18 May ‘04 to today.”