This category's scope is limited to Human time periods, not pre-Ice Age classifications in paleogeographical and similar areas of study and research.
- List of time periods — including paleoecological, paleogeological, archeological, physical and cosmological groups, etcetera.
- For histories of certain time periods see Category:History by period.
- For histories of places see Category:History by region, Category:History by country, and Category:History by city.
- For histories of other topics, see Category:History by topic
- Category:History by region
This category has the following 16 subcategories, out of 16 total.
- ► Calendar eras (4 C, 2 F)
- ► Early Modern period (12 C, 1 P, 46 F)
- ► Modern period (11 C)
- ► Prehistory (25 C, 1 P, 32 F)
- ► Space Age (10 C, 10 F)
Pages in category "Historical eras"
The following 4 pages are in this category, out of 4 total.