Here's a list of civs that should be included:
*Venice
*Vatican city
*Andora
*San Marino
*Monacho
*Lichtenstein
*Israel
*Singapore
*Makau
*Hong Kong
*Seeland
*Palmyra
*Rhodes
*Sparta
*Seracusae
*Yugoslavia
and why not:
*Sweden
*Harrapans (Mughal prebirth)
*Mamluks (egypt rebirth)
*Sumerians (requires 4000BC) (collapse to Assyrians, rebirth as Babylonians)
*Assyrians (requires 4000BC too) (collapse to Babylonians, rebirth as Phoenicians/Carthaginians)
*Polynesia
*Add chinese rebirth? (Qin/Han be the firstborn, Tang be the rebirth)
*Kievan Rus (prebirth of Russians, Russians rebirth around 1523AD)
*Hungary
Serbia/Yugoslavia:
Spawn at Ras (Beograd) at 768AD
UP: The power of fedaration: -10% maintainance cost
UU: serbian archer (archer: +1:str

UB: serbian market (+10%fortress, +1

)
UHV:
1) Control Hagia Sophia and one orthodox cathedral in 1200AD
2) Control all Balkan cities in 1400AD
3) Be the first to run Communism.
Hungary:
Spawn at 895AD at Buda.
UP: Power of hungarian gold mining: +1

per victorious battle in palace.
UB: Magyar lib (library: +10%

, -10%

)
UU: Slavic mace (heavy swordman, +20% on defence)
UHV:
1) Maintain access to sea from 1000AD to 1600AD.
2) Have the most gold output in the world by 1350AD.
3) Control HRE by 1500AD.
Venice:
1) Control Jerusalem in 1300AD.
2) Control Adriatic sea, Greece by 1700AD.
3) Finish 5 trade routes to far east by 1500AD.
Vatican city (win catholic diplomatic victory or catholicism URV)
Israel:
Spawn at 1960AD
UP: The power of western support: Euros and USA are more willing to trade techs with you.
UU: rocket: (replaces guided missile) causes collateral damage
UB: Synaguoge (replaces pagan temple): +1 hapiness, +1

1) Control Jerusalem fat cross by 1980AD.
2) Be the most advanced civ in the world by 2000AD.
3) Control Egypt, Levant, Mesopotamia in 2000AD.
Sparta:
Spawn at 800BC:
UP: The power of two kings: Unhappy citizents work.
UU: Doryphoros: (replaces spearman) +100% on defence
UB: Gymnasterion: (replaces barracks) free combat I & II
UHV:
1) Control Athens by 404BC.
2) Control three wheet resources by 300BC.
3) Never lose a city by 1AD.