Cardiff City have secured promotion to the Premier League after a draw against Charlton.
The Bluebirds last played in the top flight 51 years ago and join fellow Welsh team Swansea City in one of the world's most prestigious leagues.
The promotion will earn the club at least £90m.
Last night marked an end to several years of heartache for Cardiff City fans, with uncertainty over their club's future, and failed play-off and cup final pushes.
For three generations of one family last night was their ultimate sporting dream.
Our Correspondent Joanna Simpson went to meet them.
A turbulent time for the fans over the last few years has been mirrored by a turbulent time for the club's finances.
Cardiff faced winding up orders, but now promotion is set to boost the club's bank account, and could bring hundreds of millions to the local economy.
Our Business Correspondent Carole Green has been doing the maths.
The Bluebirds' place in the top flight was sealed with a nervy goalless draw against Charlton last night.
Malky Mackay's side, who have been top of the table since early December, can make sure they go up in style by sealing the Championship title this weekend.