I haven't been good at all about calling out the 10-year anniversaries of TM development milestones. Looking back over at the Travel Mapping threads on AARoads and the GitHub commit history, we're at the point where things were really ramping up toward the opening up of Travel Mapping to general use in late summer 2015. August 2015 saw the total reorganization of the web front end code into the general structure we have today (much of which lasted until the big 2020 changes).