Andrew Gillingham writes:
The railways owned the 19th century; the 20th was the age of the car. But as Alberto Contador processes up the Champs-Elysees to win the Tour de France, and as London's mayor, Boris Johnson, unveils his massive cycle-hire scheme, could this be the century of the bike?
Ancient Peruvian civilisation grew mighty by harvesting guano
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The Chincha Kingdom was transporting seabird excrement from islands to
valleys as early as the 13th century, and this powerful fertiliser may have
been key...
5 hours ago
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