The arrival of that milestone meant a culinary ritual on the show's set.
A very Pawnee-esque cake was presented to the cast and crew.
For the man who's played Ron Swanson for six seasons, life on the set compares to Christmas morning.
"Every time you get a new script, it's like a new present and you open it up and it's even better than the Lego set you were hoping for," Nick Offerman says.
The show that revels in the charms of small town america hopes to get the chance to do it a while longer.
"We don't want this to be the end. Just the beginning of the end," laughs Amy Poehler.
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