Date | Event | Place |
---|---|---|

Mar 14, 2025 | Pi Day 2025 | World |

Mar 14, 2026 | Pi Day 2026 | World |

A pi character generated by LEDs.

**Significance:**
Pi Day is an annual American celebration commemorating the mathematical constant Pi. Pi Day is observed on March 14 (or 3/14 in the month/day date format), since 3, 1, and 4 are the first three significant digits of Pi in decimal form.

Type:

Appreciation Days

Celebrations:

Celebrate Pi

Location:

World

Initiator:

Larry Shaw

Start year:

1988