World Bank Country Code
World Bank Country Name
State Antiquity 3500 BCE to 1500 CE
Galor-Özak CSI
Distance from State Origin
State Antiquity 3500 BCE-450 CE
State Antiquity 3500-1000 BCE
State Antiquity 1000 BCE-1500 CE
State Antiquity 1000 BCE-450 CE
State Antiquity 450-1500 CE
Late Statehood Dummy
Late Statehood $\times$ Galor-Özak CSI
Log Absolute Latitude