Why is 1954 FIFA World Cup final called the ‘Miracle of Bern’?

FIFA World Cup 1954 final became known as 'Miracle of Bern' after underdogs West Germany stunned Hungary's Golden Team 3-2 in rainy Bern. Hungary, unbeaten in 31 matches over four years and Olympic champions, had beaten Germany 8-3 earlier and led 2-0 within eight minutes. Germany equalised by 18th minute before Helmut Rahn's 84th-minute winner secured their first World Cup.