"In the industrial countries of the 19th century, the train symbolised all that was modern: a rich network of iron pathways linking one town to another, undermining the supremacy of the horse. In 1850, Latin America accounted for only one twentieth of the world's railways, but by the outbreak of the First World War, that figure had risen to over 22 per cent. Such technical achievements, however, were built on the back of hard labour and came at a high human cost – particularly in Colombia."

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