The story
By analogy with Pi Day, with 𝜏 (tau) being equivalent to 2π (6.28...)
Etymology from Wiktionary, CC BY-SA 4.0.
Tau Day
Today it means: June 28th, an annual celebration of the mathematical constant 𝜏 (tau). Full definition →
Today it means: June 28th, an annual celebration of the mathematical constant 𝜏 (tau). Full definition →
By analogy with Pi Day, with 𝜏 (tau) being equivalent to 2π (6.28...)
Etymology from Wiktionary, CC BY-SA 4.0.