Some generally useful information you may want to look up occasionally.
Geological time scale, eons, eras, periods and epochs
Geological time scale — red lines are mass extinctions, past or to come…
Types of hominins
Timeline and grouping of principal fossil hominid species
Biological species classification
Classification of modern humans and house cats, after Wikipedia
The periodic table of the elements
Periodic table of the elements
Particles of the standard model
Standard Model particle zoo
Hominoid families with dates.