Adds events to later eras.
A port of a popular mod to BUG 4.4
See:
http://forums.civfanatics.com/showthread.php?p=11982289#post11982289
for details
A port of a popular mod to BUG 4.4
See:
http://forums.civfanatics.com/showthread.php?p=11982289#post11982289
for details