As previously noted - I typically use Visio for timelines and graphics. Visio does seem to have a major constraint when it comes to timelines in that it does not extend back before 1899. I decided to try Excel on that basis and found this video on YouTube about how to do it. The instruction are very clear and effective - if somewhat rapid for an Excel user who has not used it much recently. The advantage to Excel is that your graphic is linked to the spreadsheet and that allows rapid modifi...
