999 was the world's first number for automatically telephoning the emergency services. It was introduced in London in 1936 following a disaster in 1935 in which five women died in a fire in Wimpole Street while a neighbour was unable to contact the telephoneexchange which was jammed with calls. The General Post Office which ran the telephone network at the time suggested that an easy to remember three digit number, which could be easily located in the dark or in smoke, be introduced which would cause a light to flash at the exchange alerting the operators to the urgency of the call. The number 111 was rejected as it could be accidentally dialled by knocking the receiver - telephones at the time were pulse dialled - 000 could not be used as the first 0 would make it impossible to prioritise and so 999 was adopted. One year after 999 calls were introduced in London they were introduced into Glasgow. Research 999
Abbreviations
Research 999
