Great Britain have won the Davis Cup for the first time since 1936 after Andy Murray beat Belgium's David Goffin to clinch the decisive point in Ghent.
Murray won 6-3 7-5 6-3 to give the visitors an unassailable 3-1 lead in the best-of-five tie.
Britain have now won the team title 10 times, while Murray adds the Davis Cup to his other major titles at Wimbledon, the US Open and the Olympic Games.
Captain Leon Smith guided Britain from the third tier to glory in five years.
The combined challenge of whistles, shouts, camera flashes and the weight of history could not derail Murray from his task - and neither could Goffin.
The two-time Grand Slam champion claimed a regulation straight-set win in very irregular circumstances, completing a Herculean year-long effort.
Goffin gave everything and extended Murray to two hours and 54 minutes, but there was no stopping the Scot, who was mobbed by his team-mates after landing the title with a brilliant lob and falling back on the clay.
"I just can't believe we did it," said Murray. "I play some of my best tennis when I'm playing for my country.
"We have to enjoy this because we may never get the opportunity again."
Captain Smith said: "It is amazing, as good a feeling as I could imagine. Andy has shown himself to be an absolute superstar.
"He will be the first to say that it is a team thing but what he has done is astonishing. I am proud of everyone."