What are three things you might put in the key to a historical map of ancient trade routes?

The three trade routes used during the Hellenistic era are: - The Ptolemaic empire, The Antigonid empire and the Seleucid empire in Egypt

Explanation:

Macedonia and in Persia and Mesopotamia were three Hellenic empires that followed Alexander death. - From the war of succession these three empires emerged.

citizens were able to charge more for their goods and services

answer; higher rate;