Coins minted in the Year 1980

What happended in 1980?
Monarch is Queen Elizabeth II. Prime Minister is Margaret Thatcher (Conservative). US President is James Earl (Jimmy) Carter. Winter Olympics in Lake Placid, New York. The Iranian Embassy Siege, ended by the SAS. Great Britain and Northern Ireland compete at the Olympics in Moscow. John Lennon is shot dead in New York. UK inflation at 18%. The Rendlesham Forest incident, the most well known UFO incident to occur in Britain.