Daredevil Nik Wallenda became the first person to walk on a tightrope across the Niagara Falls, taking steady, measured steps on Friday night for 1,800 feet across the mist-fogged brink of the roaring falls.

Though tethered to the wire to prevent falling to nearly certain death, he still contended with wind, water and an unfamiliar wire as he walked all the way from the U.S. to Canada.

The daring acrobat set off around 10.15 to whoops and cheers from the huge crowd at the atmospheric event, and arrived on the other side of the Falls within half an hour.

Afterwards, he said he accomplished the feat through ‘a lot of praying, that’s for sure. But, you know, it’s all about the concentration, the focus, and the training.’

The seventh-generation member of the famed Flying Wallendas had long dreamed of pulling off the stunt, never before attempted. Other daredevils have wire-walked over the Niagara River but farther downstream and not since 1896.

‘This is what dreams are made of, people,’ Mr Wallenda said shortly after he began walking the wire.

He took steady, measured steps amid the rushing mist over the falls as an estimated crowd of 125,000 people on the Canadian side and 4,000 on the American side watched. Along the way, he calmly prayed aloud.

After he made it to the Canadian side of the falls, Mr Wallenda said that at one point in the middle of the stunt, he thought about his great-grandfather and the walks he had taken: ‘That’s what this is all about, paying tribute to my ancestors, and my hero, Karl Wallenda.’

A C-shaped clamp trailed behind him on the walk, designed to allow free passage over the pendulum anchors. If he had slipped, he would dangle by his waist about eight feet below the wire to wait for rescue.

ABC, which televised the walk, insisted on it. Mr Wallenda said he only agreed because he was not willing to lose the chance and needed ABC’s sponsorship to help offset some of the $1.3million cost of the spectacle.

Conditions were good leading up to the nationally televised stunt scheduled for Friday night. When he left terra firma about 10.15pm, the temperature was in the low 60s with winds under 10mph from the east, roughly at his back.

‘I think it’s a crazy idea,’ said Maurice Wang, 59, he drove from Toronto to watch the walk from the Canadian shore. ‘Someone has to be really committed. You can’t just say, “Oh, I want to try it.” He’s got my respect for that.’

On the U.S. side of the falls, cars lined the road into Goat Island as people jockeyed for good spots to watch Mr Wallenda’s 1,800-foot walk on a two-inch wire through the mist rising from the falls.

For the 33-year-old father of three, the Niagara Falls walk was unlike anything he has ever done.

Because it was over water, the two-inch wire did not have the usual stabiliser cables to keep it from swinging. Pendulum anchors were designed to keep it from twisting under the elkskin-soled shoes designed by his mother.

The Wallendas trace their roots to 1780 Austria-Hungary, when ancestors traveled as a band of acrobats, aerialists, jugglers, animal trainers and trapeze artists.

In 1928, the family gave its inaugural performance at Madison Square Garden and earned a 15-minute standing ovation from an astounded audience, who marveled at them performing without a safety net.

And the clan has been touched by tragedy, notably in 1978 when patriarch Karl Wallenda, Nik’s great-grandfather, fell to his death during a stunt in Puerto Rico.

About a dozen other tightrope artists have crossed the Niagara Gorge downstream, dating to Jean Francois Gravelet, aka The Great Blondin, in 1859. But no one has walked directly over the falls and authorities have not allowed any tightrope acts in the area since 1896.

It took Mr Wallenda two years to persuade U.S. and Canadian authorities to allow it and many civic leaders hoped to use the publicity to jumpstart the region’s struggling economy, particularly on the U.S. side of the falls.

There are few physical feats left in the world that nobody has ever dared attempt, but tomorrow one of them can be struck off the list when Nik Wallenda steps out on a 2 inch thick steel cable to make a 1,800ft journey from the U.S. into Canada.

Watched by an estimated 125,000 people below and some half a billion on TV, his will be a border crossing like no other as he becomes the first tightrope walker to try to walk from one side of Niagara’s famous 175ft-high Horseshoe Falls to the other.

Even without the terrifying sight of America’s most powerful waterfall crashing into the rocky depths 200ft below him, Wallenda will spend 40 minutes being buffeted by strong winds, blinding spray and, if he’s really unlucky, attacks from the peregrine falcons who nest nearby.

But if anyone can do it, it is probably Wallenda, the 33-year-old American holder of six Guinness World Records titles for his tightrope heroics, and the powerfully-built heir to seven generations of the tightrope dynasty, the Great Wallendas.

Yet his challenge is considerable. Nobody has previously tried to tightrope walk across the lip of America’s most powerful waterfall for two very good reasons.

First, tightrope acts around Niagara have been banned for more than a century, and second, even when they were permitted, the bravest daredevils stayed well clear of the Falls themselves, where 200,000 cubic feet of water rush over the edge every second, crashing down at speeds of 70mph as the Niagara River drains Lake Erie into Lake Ontario.

This spectacular demonstration of nature’s power has claimed many lives over the years, and some local experts have spent recent weeks predicting with sombre certainty that it is about to claim another.

The Wallendas have never used nets or safety wires, a tradition that has claimed the lives of three of them already. But ABC, the Disney-owned TV network which is paying handsomely to televise the walk live, has now intervened. It doesn’t want to broadcast a man plunging to his death and is insisting the reluctant Wallenda wear a safety harness.

After spending two years persuading local U.S. and Canadian authorities that allowing his attempt would help their struggling economies, Wallenda needs the sponsorship from the TV deal. Thus, he appears to have accepted that he must wear a harness with a wire attached to the tightrope.

Some might have trouble appreciating the distinction, but Wallenda, who stays calm on the wire by talking to God, says he is putting his faith in a lifetime of training, which started when he was two, and in the 100-ton weights that will anchor the cranes holding the wire at each end 25ft above the top of the Falls.

When he’s not conversing with God, he can speak to his biological father, half of his two-man support team, through a microphone earpiece.

‘I don’t even think about failure,’ Wallenda said this week.

He says he is ‘battling this natural wonder because what I’m doing is a natural wonder. If not, there’d be 150 people behind me on the wire.’

So he’s not exactly modest. But, then, who but someone with an unshakeable self-belief would go anywhere near a 200ft-high tightrope in the first place?

Last-minute training has involved balancing on a wire with his 68-year-old mother Delilah on his shoulders to focus his mind, while being sprayed with fire hoses and blasted by wind machines to replicate conditions over the falls. (His mother even sewed him the special elk skin suede shoes he will wear to provide good grip, but not so much grip that they stick.)

He has also substituted the usual 24ft pole he carries for a heavier 40ft one to counteract the strong winds, which he supports with a brace strapped around his neck.

Around a dozen funambulists, as tightrope walkers are correctly named, have made it across the Niagara River gorge before. But, as the competitive Wallenda is at pains to emphasise, none dared venture across the top of the Falls, but crossed the more tranquil, narrower sections of the gorge downstream.

The first to do it was another inveterate showman, Charles Blondin, on June 30, 1859. Blondin made trip after trip across the gorge, once carrying his terrified manager over on his back, and another time humping over a stove which he used halfway across to cook an omelette.

How typically French. But, then, Blondin had to compete for attention with a rival, The Great Farini, aka New Yorker William Hunt, the first white man to cross the Kalahari desert.

Hunt traversed the Niagara gorge in 1860, on one journey hefting a hand-cranked washing machine on his back. Stopping halfway along the wire, he paused to rinse out his underwear, to the delight of his female fans watching from dry land.

As the list of successful crossings grew longer, stuntmen tried to find something new to do each time to impress the thousands — sometimes hundreds of thousands — who turned out to watch.

In 1869, British-born stuntman Andrew ‘Professor’ Jenkins went over on an early bicycle which, to the disappointment of a crowd anticipating disaster, had been adapted with wooden wheel frames grooved to sit on the hemp rope. Another Englishman, Henry Bellini, specialised in tightrope walking halfway across the gorge and then jumping 200ft into the churning waters far below.

There were, needless to say, tragedies amid the show-off triumphs.

Stephen Peer, a Canadian tightrope walker, made several successful crossings only to make the fatal mistake of trying it after a night’s drinking, whereupon he plunged to his death.

Oscar Williams, a local steeplejack who called himself the Great Houdin, tried to go across in 1910 by sliding down a sloping cable holding on to a small pulley only by his teeth. Unfortunately, he stopped moving halfway across as the cable slackened and, watched by a horrified 80,000-strong crowd, had to cling on ignominiously for 45 minutes (mercifully, he managed to get his arms and legs around the wire) until he could be rescued.

Eventually, alarmed by the growing death toll from stunts, and their tacky carnival atmosphere, city bosses on both sides of the border banned them. Tightrope walking was beginning to look a bit passe anyway, with discerning daredevils increasingly preferring to just launch themselves over the lip of the Falls.

No descent was crueller than the very first. In 1827 a local hotel bought a condemned lake schooner called the Michigan, decked it out as a pirate ship and filled it with a ‘cargo of ferocious animals’: two bears, a buffalo, two raccoons, a dog and a goose.

The bears managed to get off before it plunged over the edge, but the goose miraculously survived.

A plucky 63-year-old former teacher named Annie Edson Taylor was the first person to ‘shoot’ the Falls in a barrel and survive. Desperate for money, in 1901, aged 63, she went over the top strapped into a specially designed oak barrel weighted down with a 200lb anvil for ballast. A bedraggled Taylor, who had previously put a cat in the barrel for a test run (it survived), was fished out at the bottom suffering nothing more than a scalp wound and mild concussion.

‘I would rather face a cannon knowing that I would be blown to pieces than go over the Falls again,’ she said later. ‘I would warn anybody not to do it.’

Her advice was soundly ignored by the 14 or more people who have successfully made the same nightmare journey since then.

Perhaps we shouldn’t be surprised to learn that the wildest Niagara stunts tended to be dreamed up by the British.

There was Arthur Midleigh, an upper-class Victorian Englishman who died when he was swept after he tried to row across the swirling rapids above in a small boat, the British ensign fluttering from the bow.

And there was Captain Matthew Webb, the first person to swim the English Channel, who in 1883 tried to swim the lethal Whirlpool Rapids below the Falls. His battered body was discovered four days later.

Rather luckier was Bobby Leach, a Cornish circus stuntman who became the second person to go over the falls in a barrel in 1911, breaking both knee caps and his jaw in his 8ft steel drum.

Charles Stephens, a 58-year-old Bristol barber, meanwhile, stubbornly ignored warnings that his own design of barrel wasn’t suitable. His 1920 descent ended disastrously when, hitting the water at the bottom, the anvil he had strapped to his feet as ballast went through the bottom of the barrel and took Stephens with it.

When the barrel was recovered, only his right arm remained, ghoulishly still strapped in its harness.