Cell phone usage spread quickly throughout the world in the early 2000s -- often in developing countries, where the new technology contrasted with ancient history.
Here, an Iranian speaks on his mobile phone among the ruins of the ancient citadel in the southeastern Iranian city of Bam on December 28, 2003.
April 3, 2013 2:32 PM PDT
Photo by: BEHROUZ MEHRI/AFP/Getty Images
| Caption by: James Martin
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