This choropleth map shows the birth countries of football players who participate in the FIFA World Cup 2014. Some tidbits from the data:
Many of players born in France are children of immigrants and have double nationality. Due to France's better training infrastructure players born and/or raised there often have better preconditions than those in Algeria for example.
Since only 23 players can be selected for a country, players may opt for the country of their ancestors rather than not participating at all in international tournaments.
Apart from reasons related to footballing skills, this may also reflect problems of integrating people with foreign roots in France.
You can see the data value for an individual geographic unit (e .g. country, state, county) by moving the mouse over it.
You can zoom in by clicking on a unit and zoom out by clicking on the same unit or any point on the map outside of units.
Click on the button in the top menu to see the IPython notebook with the code to retrieve and process the data.
Click on the button to download the currently displayed map as a PNG image.
If you see in the top menu you can choose a color scheme from the drop down displayed on click.
If there is a menu item named
Choose Dataset on the left in the top menu, you can choose different data series to display on the map from that drop down.