Letter: Wait another year

Sir: Stuart Russell might like to try a simple experiment. Take ten beans and lay them out in a row. Call the first bean 0 and continue counting. Here's the last bean, number 9. That can't be right. Have another go. This time, try calling the first bean 1. Ah! Now the last bean is number 10. Ten beans, numbered 1 to 10.

And so with years. There was no such time as "the year 000". Zero has no function in counting, since it declares that there is nothing to count. Year 10 is the tenth and last of a decade, just as year 2000, which begins in a few days, is the last of 2,000 years. We won't start the third millennium, or the 21st century, until 1 January 2001. Sorry.

MICHAEL FERGUSON

St Margarets, Middlesex