Creation
Creator Stephen Hillenburg initially conceived SpongeBob  SquarePants in 1984, while he was teaching and studying marine biology at what is now the Orange County  Ocean Institute. During this period, Hillenburg became fascinated with animation,  and wrote a comic book entitled The Intertidal Zone  starring various anthropomorphic forms of  sea life, many of which would evolve into SpongBob SquarePants  characters, including "Bob the Sponge", who was the co-host of the comic and  resembled an actual sea sponge as opposed to  SpongeBob.In 1987, Hillenburg left the institute to pursue his dream of becoming  an animator,  and began to envision the possible concept of a project involving  anthropomorphic sea life, drawing several rough sketches.  In 1992, Hillenburg began to attend the California Institute of the  Arts to study animation, having been accepted into the institute  by Jules Engel, who was impressed with Hillenburg's previous  work. While attending animation school, Hillenburg received a job on the  children's TV series Mother Goose & Grimm,  and worked on the series from 1991 to 1993. When attending the  California Institute of the Arts, he made his thesis film entitled Wormholes,  which was funded by the Princess Grace  Foundation and was later displayed at various animation festivals.  In 1993, Hillenburg graduated from the institute, earning a Master of Fine Arts in experimental animation.  In 1995, Joe Murray, creator of Rocko's Modern Life, met Hillenburg at one of said  animation festivals, and offered him a job as a director of the series.animated series as a writer, producer, and storyboard  artist during the series' third season, continuing his position for  much of the fourth season.  The third season episode "Fish-N-Chumps"  (November 12, 1995) was directed by Hillenburg, and involved Rocko, Heffer,  and Filburt  going on a fishing trip, oblivious to the fact that a pair  anthropomorphic fish are attempting to catch them from underwater.  While working on Rocko's Modern Life, Hillenburg became friends  with Tom  Kenny, who was later approached by Hillenburg to become the voice  of SpongeBob SquarePants,  and future SpongeBob SquarePants collaborators Doug  Lawrence, Paul Tibbitt and others.  Hillenburg then joined the Nickelodeon 
 Rocko's Modern Life ended in 1996.Shortly following this, Hillenburg began working on SpongeBob  SquarePants, teaming up with several Nickelodeon veterans and Rocko  crew members.  To voice the character of SpongeBob, Hillenburg approached Tom Kenny,  who had worked with him on Rocko's Modern Life.  Originally SpongeBob was to be named SpongeBoy but this name was  already in use.  This was discovered after voice acting for the original seven minute  pilot was recorded in 1997. The Nickelodeon legal department discovered  that the name was already in use for a mop product.  Upon finding this out, Hillenburg decided that the character's given  name still had to contain "Sponge" so viewers would not mistake the  character for a "Cheese Man." Hillenburg decided to use the name  "SpongeBob." He chose "SquarePants" as a family name as it referred to  the character's square shape and it had a "nice ring to it".
 Whilst pitching the cartoon to Nickelodeon executives, Hillenburg  donned a Hawaiian shirt, brought along an “underwater terrarium with  models of the characters”, and Hawaiian music to set the theme. The  setup was described by Nick executive Eric Coleman as "pretty amazing".  When given money and two weeks to write the pilot episode (“Help  Wanted”),  Derek Drymon, Stephen Hillenberg, and Nick Jennings returned  with, described by Nickelodeon official Albie  Hecht, “a performance (I) wish (I) had on tape”.  Although described as stressful by executive producer Derek Drymon,  the pitch went “very well”; Kevin  Kay and Hecht had to step outside because they were “exhausted from  laughing”, making the cartoonists worried.
 Season one
 SpongeBob SquarePants aired its first episode, "Help  Wanted/Reef Blower/Tea at the Treedome," on May 1, 1999, following the Nickelodeon  Kids' Choice Awards.  The series later made its "official" debut on July 17, 1999 with the  second episode "Bubblestand/Ripped Pants."
 The series initially suffered in the ratings, and failed to attract a steady audience.  Creator Hillenburg was confident that due to the low ratings, the  Nickelodeon executives would cancel the series after its first season.Sumatra  and noticed a schoolgirl carrying a bootleg SpongeBob  SquarePants bookbag, convincing him of the  series' cult following.  However, he continued to believe that the series would be canceled  after its first season, and was surprised when Nickelodeon renewed the  series for a second season.  However, during this period, Hillenburg visited 
 Season two  through three
 The second season began on October 26, 2000 with the episode "Your  Shoe's Untied/Squid's Day Off," and during this time, the show propelled  into stardom, with the help of a huge merchandising campaign that  continues to this day. The growing popularity of SpongeBob led to  Nickelodeon immediately ordering a third season, which began on October  5, 2001 with the episode "Just One Bite/The Bully."
 In 2002, as the show's success continued to grow, production on a  feature film spin-off began. The announcement of the movie led some fans to fear that  the series was being cancelled and rumors of such were spread.  Nickelodeon, having aired half of the third season by then, decided to  spread the remaining episodes out over two years and the final episode,  "SpongeBob Meets The Strangler/Pranks A Lot," aired on October 11, 2004.
 Released in the U.S. on November 19, 2004, The SpongeBob SquarePants Movie  received generally positive reviews from critics and successfully  grossed over $140,000,000 worldwide. The film was intended to be the series  finale, and creator Hillenburg announced that he would resign.  However, in 2005, it was announced that SpongeBobexecutive producer.  The job now belongs to Derek Drymon, with Paul  Tibbitt taking over Drymon's job as creative director. would be  continuing with a fourth season due in May. Stephen Hillenburg was  rumoured to have left the series; however, he did not actually leave the  show but resigned from his position as the show's 
 Deleted scenes
 "Just One Bite" was edited from subsequent  airings compared to its original airing in 7 October 2001 because of a  scene near the end of the episode. In the scene, Squidward opens a trap  burglar alarm containing gas, a robot hand drops a match on the gas,  causing Squidward and the room to go on fire. Squidward goes into the  fry-cook room in panic, and the same process happens again. This scene  was removed from later airings and DVD prints (including the "Complete  Third Season" DVD) and in this case was replaced with another scene  where the camera zooms into the Patty Vault without Squidward saying his  censored lines, and Squidward enters the vault without getting burned  by the traps. Nickelodeon did not explain the cause and reason of this,  although similarities between 9/11 may have been why. 
 Another deleted scene was in the episode "Procrastination",  where SpongeBob looks out the window and see everyone having fun,  imagines a live-action racecar crashing to the side (most likely the  reason why this scene was cut), and when he does calisthenics. 
 Season four  through seven
 The new episodes began airing on May 6, 2005. The first new episode  was "Fear of a Krabby Patty"/"Shell of a Man". After airing three new  episodes on Fridays from May 6 – May 20, Nickelodeon showed no new  episodes until September 2005. For the first time in the series' run,  Nickelodeon began airing 11-minute segments of new episodes separately,  spread over two weeks. This practice began with the airing of the  episode "Selling Out" on September 23; its companion episode, "Funny  Pants," premiered the following week. The Star Online eCentral reported  in December 2005 that Nickelodeon had ordered 20 more episodes, bringing  the show’s total to 100.
 In December 2006, SpongeBob was approved for a fifth season  which began on February 19, 2007 with the episode "Rise and  Shine"/"Waiting"/"Fungus Among Us."  On July 23, 2007 Nickelodeon aired a special event, called the  "SpongeBob New-New-New-New-New Week" in which from Monday to Friday, a  new episode would air.  This continued until the end of the second week. Later on November 12,  2007 a TV movie aired titled Atlantis SquarePantis,  guest staring David Bowie as the voice of Lord Royal Highness.  On March 13, 2008, it was announced that SpongeBob will have an  additional thirty-nine episodes, which includes the remaining episodes  of the sixth season, and a seventh season.  The last remaining episode from the fifth season, "Goo Goo Gas",  finally aired on July 19, 2009, completing the fifth season of the  series.
 Tenth anniversary
 On July 14, 2009, a primetime SpongeBob tenth anniversary  documentary titled Square Roots:  The Story of SpongeBob SquarePants, aired on VH1, discussing  the history of the show, and its impact on popular culture.  Starting on July 17, 2009 at 8:00 PM EST, Nickelodeon aired a 50½-hour  marathon titled "The Ultimate SpongeBob Sponge Bash." The marathon  included the premiere of 11 new episodes, countdowns of celebrities' and  viewer-chosen top 10 episodes, and more.  On November 6, 2009, a second TV movie debuted on Nickelodeon, titled Truth or Square, in which  SpongeBob, Patrick, Squidward, and Mr. Krabs are accidentally locked  inside the Krusty Krab freezer on the night of the restaurant's  eleventy-seventh anniversary celebration. While trapped inside, the  friends look back on their shared memories with "shocking" reveals.  Several celebrities made live-action cameo appearances on Truth or  Square, including Rosario Dawson, LeBron  James, Tina Fey, Will Ferrell, Craig Ferguson, Robin Williams and Pink, while Ricky  Gervais provided opening and closing naration for the special.  Also Victoria Beckham was set to lend her voice  as Queen Amphitrite, a Brit-accented goddess of the sea in an upcoming  episode most likely to air during an hour-long special this summer.