Is Spongebob Squarepants the "historic cartoon of our generation?"
Depends on which side of the generation you come from. I was born on the cusp of the end of Generation X and the beginning of Generation Y/Millennial Generation.
The Generation X part of me says that The Simpsons is the most historic cartoon of my generation. I was a kid when the original shorts aired on the then-fledgling Fox network back in '87 and was there when the series premiered as a series years. If it wasn't for The Simpsons, animation on television would be dead. There would be no Beavis and Butthead, South Park, Family Guy, nor Adult Swim if The Simpsons hadn't came along. One could argue that there probably wouldn't be Nicktoons nor a Cartoon Network without the series' success. That's how far-reaching the significance and impact of the series had when it began and what it still has today, despite the snark emitting from the younger half of the readers here who feel The Simpsons is no longer entertaining.
Young punks. :evil:
The Millennial part of me agrees with the notion that Spongebob Squarepants is the most historic animated series of my generation. I was an adult, a 21-year-old college student, when the series began. It didn't really catch on with the public until about two years in. And the public never let him nor the series go. Spongebob Squarepants the series and Spongebob Squarepants the character have both reached across demographics and age groups and has become an international phenomenon. The last animated character to impact a large population the way the little, optimistic, silly fry cook has is Mickey Mouse. Seriously, if you went around the world with flash cards featuring many different cartoon characters, kids and adults will instantly recognize the little absorbent character.
So what if Spongebob doesn't have a catch phrase? Mickey Mouse doesn't have a catchphrase other than "Hot dog!" or "Oh boy!" Woody Woodpecker, like Spongebob, is recognized easily by his laugh. Spongebob has made over 250 shorts/specials. Nothing to sneeze at, but I'd have to say if any series is the most historic from this generation, it's Spongebob Squarepants.