Description of special abilities from this
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Songhai - River warlord - Get triple gold from barbarian camps and pilaging cities. Embarked units can defend themselves.
Japan - Bushido - Units fight as though they were at full strength even when damaged.
Russia - Siberian Riches - Strategic resources produce +1 hammer production. Horse, Iron and Uranium resources provide double quantity.
Persia - Achaemenid Legacy - Golden Ages last 50% longer. During a Golden Age, units receive +1 movement and +10% combat strength bonus.
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Rome - Glory of Rome - 25% production towards any building that already exists in the capital.
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Ancient Era Tech - Agriculture
Renaissance Era Techs - Acoustics, Archeology, Astronomy, Banking, Chemistry, Economics.
Radar allows Bomber, Paratrooper, Pentagon
Your Industrial Techs have no Spoilers (maybe remove all spoilers?)
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Modern Era Techs - Plastics, Penicilin, Electronics, Mass Media, Radar, Atomic Theory
2nd line - Ecology, Computers, Rocketry, Lasers, Nuclear Fission
3rd line - Globalization, Robotics, Satellites, Stealth, Advanced Nukes
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Social Policy - Freedom - Civil Society makes specialist consume only half the amount of food.
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United Nation gives +1 culture and 2 Great Merchant Points. Triggers voting for Diplomatic Victory