The following article appeared in March/April 2016 edition of Metric Today, the newsletter of the US Metric Association (USMA). It is being re-posted with USMA’s permission.
Fifteen years ago, on 1 January 1999, the euro was introduced as an accounting currency. Notes and coins were introduced three years later. Whilst there are arguments for and against the euro, and UKMA takes no position on this issue, no one challenged at the time that the single currency would be decimal.