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Happy Pi day 2020 Shirt Pi day Geek Nerd Math Teacher Gift T-Shirt Digital Art by Julie Hurst - Fine Art America
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Happy Pi Day 2020! We're celebrating with a sale (all weekend!) – use Code PIDAY for 10% off #PiDay « Adafruit Industries – Makers, hackers, artists, designers and engineers!
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Pi Day March 14, 2020: Events, Activities, & History | Exploratorium - CubeForTeachers - Cube For Teachers
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