Aug. 4, 2011
I don't know who comes up with these "national days", but National Chocolate Chips Day is worthy! (Note some references say May 15 for this celebration, rather than August 4; let's just celebrate both days.) Chocolate being a major food group in and of itself, chocolate chips provide a convenient way to incorporate chocolate into lots of things, or simply to pop into your mouth.
You can learn more about production of chocolate chips as well.
Enjoy your chips!