- 20:09, 1 December 2020 (diff | hist) (+391) N Quaternary Period (→Meaning: added content) (current)
- 20:00, 1 December 2020 (diff | hist) (-1) Plate Tectonic Theory (→Meaning) (current)
- 19:58, 1 December 2020 (diff | hist) (+13) Plate Tectonic Theory (→Meaning: added a link to another page)
- 19:55, 1 December 2020 (diff | hist) (+359) N Plate Tectonic Theory (→Meaning: added content)