A US teenager who launched a chain letter over the internet as part of a class project has been swamped with responses.
Shannon Syfrett, 15, launched the letter to seek responses from around the world to show how far and fast information can travel.
She expected that in six weeks she "might get 2,000 or 3,000" replies to her note asking people to write back and pass her message along.
By the next day, the request sent to 23 people generated 200 email replies.
On the third day messages had arrived from 47 US states and 25 countries. The day after there were 8,768 emails, and another 12,013 three days later.
According to The Daily Telegraph at one point email was arriving at a rate of one every 2.3 seconds.
Syfrett decided to end the experiment 17 days early after she had received 160,478 emails from 189 countries. But even then the messages continued to arrive.
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