THE sun had just set over Anfield — and on a 30-year wait to be champions of England again — when the fireworks started to explode into the twilight.

A signal went out across Merseyside. The drought was finally over for Liverpool.

At first there were just a dozen supporters who watching on phones and listening on radios outside this hallowed stadium.

They were soon surrounded by a sea of thousands snaking from the entrance to the Kop past the The Albert Pub to the Hillsborough memorial.

And as darkness eventually engulfed Liverpool’s home on this midsummer’s evening, a red haze of smoke began to light the skies.

Waving flares and flags, Liverpool’s faithful found a way to share this moment together on Thursday, even in a pandemic.

It’s hard to stay apart when a three-decade mission has been accomplished, even though the crowning moment came without Liverpool players being on the field.

The squad had to watch on television, just like the fans, as second-place Manchester City lost 2-1 at Chelsea and left Liverpool 23 points in front. With seven games to go, Liverpool cannot be caught.

“This is bliss,” 61-year-old fan Francis Murphy said as fans clambered onto the Main Stand behind him.

“I have supported them all my life and to go 30 years without winning the league really hurts. But we are back, and Liverpool will stay back.”

Jurgen Klopp, the German manager who has restored a winning mentality to Liverpool with his brand of “heavy metal” football, already led the club its sixth European club title last year.

“The players wanted to write their own history and stories so they were ready not to compare us with those great figures in this club.

“The last 13 months were pretty special for us. It is an incredible time in my life, to be honest. I couldn’t be more thankful to be part of it.

“And we will not stop.”

The twice-weekly Covid-19 testing that allowed the Premier League to resume last week after a 100-day suspension enabled Klopp to join his squad and staff for a viewing of the game from Stamford Bridge.

“We thought maybe not compulsory,” Klopp said. “I know who will stay at home and watch it alone will regret it for the rest of his life. So we came here together. It is our bubble.”

Liverpool became England’s earliest and latest champion: clinched with the most games to spare and by the latest calendar date.

This title had hardly been in doubt since December. A fluid, attacking style of play earned 28 wins and two draws in 31 games with a loss at Watford.

“The world has watched the fierce determination of this club on the field for every single match,” said John Henry, Liverpool’s US owner, “the preparation, the resolve and the talent of those who put together perhaps the greatest league performance ever in any country’s history.”

The club was 25 points clear when the league was abruptly halted by the coronavirus in March.

“Null and void” became the dreaded term in the red half of Liverpool, amid fears the season could be cancelled completely.

When Liverpool returned on Sunday, a 0-0 draw at Everton delayed the crowning moment. The team rediscovered their scintillating attacking form as it swept aside Crystal Palace 4-0 on Wednesday inside an empty Anfield.

Fans couldn’t go to pubs, which have been shut since March.

“We are not going to complain and make a fuss,” said 21-year-old defender Trent Alexander-Arnold, a lifelong fan. “It’s something we’ve always dreamed of.”

But the police adopted a relaxed approach to allow the outpouring of emotion outside Anfield.

Thousands filled the streets long after midnight, singing club anthems old and new — from You'll Never Walk Alone to Allez, Allez, Allez.

Klopp reserved praise for the fans, saying: “I know it means the world to them — it means the world to me.

“It’s massive and what I love is when you have a successful football club in your city it gives the whole city a lift. I am really happy for our people.”

In 1990, the top tier was still called the First Division and the Liverpool held the English record with 18 titles. But the inception of the Premier League in 1992 transformed the landscape of the English game.

Liverpool faded and Manchester United won 13 Premier League titles in 21 seasons.

United manager Alex Ferguson succeeded in his mission of knocking Liverpool “off their perch” by helping the Mancunians become 20-time English champions and one of the wealthiest teams in the world.

Henry’s experiment of bringing back 1990-title winning manager Kenny Dalglish was short-lived: an eighth-place finish in 2012 was the club’s lowest in 18 years.

Brendan Rodgers’s finished two points shy of champion Manchester City in 2014 — after captain Steven Gerrard slipped on the pitch and gave away a goal is a critical loss to Chelsea.

Klopp arrived in October 2015 and Liverpool finished eighth again that season.

Liverpool finished just one point behind winner Man City last season. There was no stopping Klopp’s team this time.