- "Five centuries ago, we won and lost an empire of four hundred million citizens."
- — Miran Trescu reflecting on his nation's history
The Silver Era was a period of time in Sera's history when two of the world's superpowers were Kashkur and Gorasnaya. Both of these nations had huge, magnificent empires. Gorasnaya had an empire that comprised of four hundred million people. At the same time, Tyrus was still a young nation and Ephyra was only a small village. The Silver Era was a time when warfare involved swords and chariots.