1

Mesopotamia

2

Egyptian Antiquity

3

Greco-Roman Classicism

4

Tribal Mesoamerica

5

Tribal Scandinavia

6

Feudal Far East

7

European Middle Ages

8

Islamic Golden Age

9

Italian Renaissance

10

Age of Exploration

11

Industrial Revolution

12

Early 20th Century

13

Middle 20th Century

14

Late 20th Century

15

Present Day

16

Utopian Future

17

Dystopian Future

18

Post-Apocalypse

19

Re-roll (dice="1d18") and Re-roll (dice="1d18")

20

Re-roll (dice="1d18"), Re-roll (dice="1d18"), and Re-roll (dice="1d18")