Art enthusiasts believe that they have spotted evidence that time travel exists after seeing a 17th-century photo of a boy appearing to wear Nike trainers.
Visitors at the National Gallery in London, England spotted an almost 400-year-old illustration by Dutch painter Ferdinand Bol.
The portrait displays a pensive-looking child holding a goblet but upon closer inspection, eagle-eyed people saw an apparent Nike tick on the youngster’s boots.
The painting - which is presumed to have been drawn in the 1650s - predates the sportswear brand by about three centuries.
Check out the 17th-century picture below:A 57-year-old mother named Fiona Foskett, from the Isle of Wight, saw the rarity while visiting the museum with her 23-year-old daughter Holly.
Foskett spoke with The Sun about the portrait and said that the trainers "really stood out" to her, and quipped that the young boy was a "time traveler".
"I was looking at the painting and the trainers really stuck out to me," she said. "I said to my daughter, ‘Hold on, is he wearing a pair of Nike trainers?'
"It had us in fits of laughter - he’s certainly a trendy-looking youngster," the mom-of-one continued. "Looking at the age, he must have got his hands on the first pair of Nike trainers ever made. Or is he actually a time traveler?"
According to the publication, the child in the photo is believed to be Frederick Sluysken - the second cousin of Bol's wife and the son of a rich wine merchant.
A spokesperson from National Gallery has decided to weigh in on the time travel theory and said: "We are delighted that this picture has been such a hit with our visitors," as cited by the outlet.
"It resonated with followers when we put out a tweet asking people to see if they could spot a more 'modern' detail by taking a closer look at the shoes of the eight-year-old boy in the portrait," they added.
This isn't the first time people have allegedly spotted a modern detail in an ancient work of art.
Some internet users were left baffled after an illustration from the 1800s seemed to show a woman holding an iPhone - despite the popular device having only been invented in 2007.
The piece of art called The Expected One - painted by Austrian artist Ferdinand George Waldmüller - shows a woman walking through nature, with a young man waiting for her in the foreground of the painting, holding a flower.
In the painting - which is currently on display in Munich, Germany - the woman can be seen looking down at an object in her hands, which has now become the subject of numerous time travel conspiracy theories.
However, these opinions were contrasted by Gerald Weinpolter, an 19th and 20th-century art expert, who told Vice: "The girl in this Waldmüller painting is not playing with her new iPhone X, but is off to church holding a little prayer book in her hands."
If you ask me... it can't be a coincidence that several ancient portraits display contemporary details.
