I have upgraded my site from drupal 7 to drupal 8. This was a m ajor change in system architecture. I believe most of the original paths remain the same but some links may be broken, for any of you that have links to my original site. I have removed the logic for operating as an on-line course. It remains a reference site for the travels of Samuel L. Clemens, aka Mark Twain. The emphasis is on observing social and physical phenomena related to the on-set of industrialization. One major improvement is the inclusion of more maps. This is best seen in parts of the section on the Twain-Cable Tour. Drupal mapping modules have advanced to the point where I can display the train routes followed by these "Twins of Genius". Such maps on the earlier version of this site were screen captures of Google Earth displays. -- There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy. http://bscottholmes.com