1 mar 1800 año - Increasing Population
Descripción:
 The population in Europe grew from 188 million in 1800 to 266 million in 1850, and to 402 million in 1900. This was predominantly a result of new major food crops like the potato that ere introduced to Europeans. 
Añadido al timeline:
fecha:
1 mar 1800 año
Ahora mismo
 ~ 225 years ago 
Fotos:
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