How did access to oil fields play an important role in the beginning of world war ll?

Reformers worked to change schools by making them more:

Historians use periodization in order to: a. decide when a certain historical even took place. b. divide history into units with distinct start and end dates. c. criticize arguments made about the past. d. organize history into different timelines

This citizenship limited to men a characteristic of athens, sparta, or both? 1. athens 2. sparta 3. both