Question: When was Rockslide added to Studio Tour?
About the article "Universal Studios Hollywood", section "Attraction history".

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When their studio was added to the Universal Studios Tour, Conan acknowledged that it could not compete with the other stops on the tour.
In order to compensate for this, Conan and Andy would act out exciting scenarios as the tour passed the studio.
Past scenarios have included Conan delivering Andy's baby and Conan curing Andy's paralysis. 
Rockslide is one of the students that goes up against the Hulk when he attacks the Institute.
He knocks over the Hulk so the other students can hold him down, but is knocked away when Hulk regains his strength.
When Rockslide attacks him alone, it appears that Hulk knows who he is and what he can do.
The Hulk rips off both of Rockslide's arms, steps on him, then tears off his legs.
He then rids Rockslide of his limbs by throwing them a great distance, ridding Rockslide of his powers and the ability of ambulatory function.
His limbs were eventually located after Hulk leaves.
Santo has stated that as a kid he pretended he was the Hulk. 
In 1965, The War Lord Tower opened as one of the first attractions in the theme park.
This was followed by the opening of the Animal Actors School Stage in 1970.
In 1974, the Rockslide staged event was added to the Studio Tour.
The following year The Land of a Thousand Faces opened on the Upper Lot.
In 1979, The Battle of Galactica replaced Rockslide as a staged event on the Studio Tour.
The Flintstones Show opened, replacing the Star Trek Adventure.
In 1996, opened.
In 1997, two shows were replaced: The Land Before Time show replaced Rocky and Bullwinkle Live; and Totally Nickelodeon replaced The Flintstones Show.
Just one year after it opened, The Land Before Time show was replaced with Coke Soak.
In 1999, T2 3-D: Battle Across Time and a Chicken Run Walkthrough opened on the upper lot.
Additionally, Beetlejuice's Rock and Roll Graveyard Revue was closed.
In 2000, the Rugrats Magic Adventure replaced Totally Nickelodeon.
In 2001, the Nickelodeon Blast Zone opened.
Also in 2001, Animal Planet Live replaced the Animal Actors School Stage.
In 2 replaced The Mummy Returns: Chamber of Doom.
The following year, Fear Factor Live replaced Spider-Man Rocks.
In 2007, Universal's House of Horrors opened, replacing Van Helsing: Fortress Dracula.
Both Lucy: A Tribute and Back to the Future: The Ride were closed, prior to being replaced in 2008 by The Simpsons Ride and The Universal Story Museum respectively.
Also in 2008, the Nickelodeon Blast Zone was rebranded to The Adventures of Curious George.
In 2009, Creature from the Black Lagoon: The Musical replaced Fear Factor Live in the Upper Lot.
In 2010, the Special Effects Stages and Backdraft attractions were closed to make way for Transformers: The Ride which was announced in 2008 (Special Effects Stages was moved to the former Creature From The Black Lagoon building and reopened as Special Effects Stage).
King Kong 360 3-D also opened.
On May 24, 2012, Transformers: The Ride opened on the Lower Lot.
On December 31, 2012, Universal Studios Hollywood closed for , the attraction at Universal Studios Florida, set to come in the April of 2014.
Universal Studios Hollywood has plans to open The Wizarding World of Harry Potter which will feature the Harry Potter and the Forbidden Journey ride sometime in 2015-2016.
Gold coral is prized in jewellery making for its iridescent qualities which are similar to tiger's eye.
The coral featured on TV in an Octonauts special episode, The Great Christmas Rescue, when a 500-year old specimen was rescued from under a rockslide on a seamount. 
During the "New X-Men" story arc "The Quest for Magik," Anole and his classmates are sucked down into the dimension of Limbo by the demon Belasco.
They are soon attacked by a large group of demons, and Anole takes charge, rallying the students around the defenseless Blindfold, only to have his right arm severed at the shoulder by a demon.
Later he is trapped in stone by the machinations of Darkchilde as she attempts to create a powerful Soulsword from Pixie's soul.
Anole manages to break himself free and stop Darkchilde from completing the process, saving Pixie.
Anole then finds that he has generated a larger and stronger reptilian arm replacing the one he lost, a previously unknown aspect of his mutation.
The arm itself is spikey, resembling his scalp, with razor sharp claws.
After helping to defeat Belasco, Anole and Pixie are made members of the New X-Men squad on recommendation of Rockslide, who threatens to quit if they are not appointed to the team.
Rockslide and X-23 later try to convince Anole to cut off his other arm in order to generate a stronger replacement.
When he refuses, Rockslide calls him a sissy, which Anole finds offensive enough for him to reveal his sexual identity to Rockslide and attack him.
Rockslide apologizes, swearing that he did not know.
Later, in a misguided attempt at group bonding, Rockslide voices his acceptance of Anole's sexuality, outing him to some of the other students, though Loa states that she was already aware and that everyone already knew.
As a member of the New X-Men, Anole takes part in various missions with the team, including the events leading up to "" and through to its conclusion when Cyclops officially closes the school and disbands the X-Men.
With the school closed, Anole returns to his family in Fairbury, Illinois.