Roger Gilbert Bannister was born on 23 March 1929 in Harrow, Middlesex. After leaving University College School in London, he went to Oxford to read medicine before going on to St Mary's Hospital Medical School. Bannister practised medicine in the field of neurology. In March 1957, he joined the Royal Army Medical Corps at Crookham, and his major contribution to academic medicine was in the field of autonomicfailure.

Bannister used his medical knowledge to devise his own training regime and investigate the mechanical aspects of running. His time of 3 minutes 59.4 seconds, set in Oxford on 6 May 1954, stood as a record for just 46 days.

John Michael Landy was the second man to break the four-minute mile barrier. On 21 June 1954, in Finland, Landy became the second man to achieve a sub-4-minute mile. He recorded a world record time of 3:57.9 which was ratified by the IAAF as 3:58.0 owing to the rounding rules then in effect. That record held for more than three years. Worldwide, Landy is probably best known for his part in a mile race in the 1954 British Empire and Commonwealth Games. Landy ran his second sub-4-minute mile in the race, but lost to Roger Bannister, who had his best-ever time of 3 min 58.8 secs.

Sir Roger, who was knighted in 1975, had been suffering from Parkinson's disease since 2011. He died at the age of 88 on 3rd Mar 2018, and will always be remembered as the first person to run a sub four minute mile.

More Info: en.wikipedia.org