The number π is a mathematical constant. Originally defined as the ratio of a circle’s circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159. From Wikipedia
The earliest known official, or large-scale celebration of Pi Day, was organized by Larry Shaw in 1988 at the San Francisco Exploratorium. The Exploratorium continues to hold Pi Day celebrations.
HOW TO OBSERVE
Our research has found that there are different ways that people celebrate National Pi Day. Some of the celebrations include:
- Eating a slice of pie
- Pie eating contests
- Discussing the significance of the number π
- More recently watching Life of Pi
- Finding 3.14 deals in as many version of π as possible. For example
March 14 is celebrated for other reasons too:
- Steak and Blowjob Day (sometimes Steak & BJ Day or Steak and Knobber Day) is a satirical holiday created in the United States as a male response to Valentine’s Day and celebrated a month later, on March 14.
- On March 14, 1964, a jury in Dallas found Jack Ruby guilty of murdering Lee Harvey Oswald, the accused assassin of President John F. Kennedy, and sentenced him to death. (Both the conviction and death sentence were overturned, but Ruby died before he could be retried.)
- In the St . Vincent and the Grenadines is it National Heroes Day, which is a public holiday.
- It ‘s National Potato Chip Day so enjoy a bag without feeling guilty.
- National Write Your Story Day- You may think to yourself, “There’s nothing in my life to tell.” It will surprise you once you put pen to paper, or fingers to keyboard and the words start filling the pages. Words have a way of triggering memories.
- NationalLearn about Butterflies Day
- There are more than 20,000 types of butterflies worldwide.
- Their wing spans can range from 1/2 inch to 11 inches.
- Butterflies in their adult stage can live from a week to nearly a year, depending on the species.
- Many butterflies migrate over long distances. Particularly famous migrations are those of the Monarch butterfly from Mexico to the northern USA and southern Canada, a distance of about 2500 to 3000 miles.
If you use the first date of 1 Jan 2019 the answer is