"HistoricalCountry" Polygons
The new geo entity domain "HistoricalCountry" provides useful data about a large collection of historical entities.
Extension in time of the Roman Empire.
In[1]:=
![Click for copyable input](assets.en/historicalcountry-polygons/In_24.png)
Entity["HistoricalCountry",
"RomanEmpire"][{EntityProperty["HistoricalCountry", "StartDate"],
EntityProperty["HistoricalCountry", "EndDate"]}]
Out[1]=
![](assets.en/historicalcountry-polygons/O_22.png)
This is the maximum geographical extent of the Roman Empire.
In[2]:=
![Click for copyable input](assets.en/historicalcountry-polygons/In_25.png)
GeoGraphics[{EdgeForm[Black], FaceForm[Red],
Polygon[Entity["HistoricalCountry", "RomanEmpire"]]},
GeoBackground -> "ReliefMap", GeoGridLines -> Automatic]
Out[2]=
![](assets.en/historicalcountry-polygons/O_23.png)
And this is the maximum extent of the Mongol Empire.
In[3]:=
![Click for copyable input](assets.en/historicalcountry-polygons/In_26.png)
Entity["HistoricalCountry",
"MongolEmpire"][{EntityProperty["HistoricalCountry", "StartDate"],
EntityProperty["HistoricalCountry", "EndDate"]}]
Out[3]=
![](assets.en/historicalcountry-polygons/O_24.png)
In[4]:=
![Click for copyable input](assets.en/historicalcountry-polygons/In_27.png)
GeoGraphics[{EdgeForm[Black], FaceForm[Red],
Polygon[Entity["HistoricalCountry", "MongolEmpire"]]},
GeoBackground -> "ReliefMap", GeoGridLines -> Automatic]
Out[4]=
![](assets.en/historicalcountry-polygons/O_25.png)