Several unreliable sources list January 19 as Quark Day.
Quark is a fresh dairy product similar to French fromage blanc, Indian paneer, or Spanish queso fresco. Because it is high-protein, low-fat, and low-sodium, it is considered a superfood which can be used for cooking, baking, and blending.
Quarks are also sub-atomic particles that make up protons, neutrons, and electrons. No one has seen a quark at any time. Their existence was proposed by physicists Murry Gell-Mann and George Zweig in 1964 to explain some electron scattering phenomenon in the Stanford Linear Accelerator Center. For this discovery they jointly won the 1969 Nobel Prize in Physics.
These posts are true to the best of my knowledge at the time of writing. I make no claims as to their accuracy. The purpose is to inform, educate, amuse, and make people aware of causes and opportunities around the world. I also encourage civil debate in the comment section.