| Date | Description |
|---|---|
| 2024-06-23 | delete alias Introduction to URG (Slide Show) |
| 2024-06-23 | update description |
| 2022-08-10 | insert person D. Joy Riley |
| 2022-08-10 | insert person Dr. Jeanette Hagen Pifer |
| 2022-08-10 | insert person Dr. Scott Rae |
| 2019-11-18 | update website_status Disallowed => OK |
| 2019-07-16 | update website_status FlippedRobots => Disallowed |
| 2019-06-21 | update website_status OK => FlippedRobots |