"Expansive" is one of the leader traits. Expansive leaders get +2 
per city and double production speed for the Granary and Harbor. As of Beyond the Sword, they also get 25% faster production of Workers.
The following leaders are Expansive in Warlords and Beyond the Sword:
Bismarck (
German)
Isabella ( Spanish)- Joao II ( Portuguese)
- Mao Zedong ( Chinese)
- Mehmed II ( Ottoman)
- Pacal II ( Mayan)
- Peter ( Russian)
- Shaka ( Zulu)
- Suryavarman II ( Khmer)
- Washington ( American)
The following leaders are Expansive in vanilla Civilization IV:
- Bismarck ( German)
- Cyrus ( Persian)
- Genghis Khan ( Mongolian)
- Isabella ( Spanish)
- Julius Caesar ( Roman)
- Peter ( Russian)
- Victoria ( English)
| Civilization IV Leader traits [edit] |
|---|
| Aggressive • CharismaticW • Creative • Expansive • Financial • ImperialisticW • Industrious • Organized • Philosophical • ProtectiveW • Spiritual |
| W Added in Warlords |