Plant and animal kingdoms.
These are in both the systems.
I’m confused what keywords
The Mycenaean civilization during the dark age became a time of destruction. There were invasions,earthquakes and famine (little food). With the collapse of this civilization and sudden disappearance of writing evidence we have little knowledge as to what really happened during the dark ages.
Naval warfare.
Land warfare.
Artillery.
Chemical warfare.
Mobile warfare.
Aerial warfare
