This is a great holiday t-shirt for **math geeks** to wear on St. Patrick's Day. The graphic design shows a mathematical-style drawing of a lucky shamrock, along with sketch-style text that reads "Happy St. Patrick's Day."

This fun St. Patrick's Day - Math mashup t-shirt is a great gift idea for math teachers and geometry teachers and math geeks to wear on the Irish holiday. Diagrams of the circles that make up the shamrock detail parts like the diamter, radius, chord, and more.

Get this shirt from provide Zazzle, which offers artist designs on a huge variety of apparel styles, cuts, and colors.

Today, April 25, is known as World Veterinary Day or World Veterinarian Day, a commemorative holiday created by the World Veterinary Association back in 2000. The celebration occurs on the last Saturday of April. The day is meant to highlight and recognize professional veterinarians and the work they...