South America is one of the hotbeds of football, and in this series we explore the different countries of the continent. In each episode of The South America Files, we'll be looking at how the game has developed; the clubs, the players, the joys and despairs. Guided by our South American football expert Dr Pete Watson, this time we're off to Bolivia, where two wars, geography and mining dictated the introduction and development of the game and why the national team didn’t play a home game until 1950.