CLONES: Can you believe the world has known about “Dolly” the cloned sheep for 20 years?

Wednesday will be the 20th anniversary of the controversial announcement.

As readers may recall, “Dolly” was “the first cloned mammal ever to be created from an adult cell,” explained the National Museums Scotland webpage about the sheep.

While “Dolly,” who was named after singer Dolly Parton, was born July 5, 1996, it wasn’t until several months later on Feb. 22, 1997, that her birth was made public.

“The birth of Dolly was kept under wraps until the publication of the Roslin Institute’s research results could be prepared,” the NMS page reads. “Once these results were released, the full impact of the discovery became plain, as the world’s press descended on Roslin.”

During her life, “Dolly” had six lambs of her own; later, she developed arthritis. She became sick in February 2003, and she was put under general anesthesia so health professionals could do a CT scan.

Finding tumors growing in her chest, “it was decided that it would be best if Dolly did not regain consciousness and she was put to sleep,” according to NMS.

The Roslin Institute, part of the University of Edinburgh, gave “Dolly” to NMS, and the sheep is on display at NMS’s Science and Technology galleries. Visitors to the Science and Technology galleries can also run in a human-sized hamster wheel and see the transformation of bicycles over the years.

But the most exciting thing we’re going to tell you today is that if you go to the National Museums Scotland webpage about “Dolly” — http://www.nms.ac.uk/explore/stories/natural-world/dolly-the-sheep/ — you can play a video game called “Dolly and the Atom Smasher.”

The game begins as so: “Hmmm. It looks like the clones are up to mischief in the museum again … This time, they are finding out how many will fit into an atom smasher …”

Oh, my.