The ratio of circumference to diameter is the value of Pi. We gather a really interesting list of Pi facts to learn more about this mysterious value number.

1. A Pi is an irrational number.

2. The first million decimal places of pi contains 99,959 zeros, 99,758 1s, 100,026 2s, 100,229 3s, 100,230 4s, 100,359 5s, 99,548 6s, 99,800 7s, 99,985 8s, and 100,106 9s.

3. Plato apparently got the correct value for pi: √2 + √3, which is 3.146.

4. Albert Einstein was born on Pi Day.

5. Pi is the ratio of a circle’s circumference to its diameter.

6. Pi is also mentioned in the Bible.

7. Darren Aronofsky’s fascinating movie π shows how the main character’s attempt to find simple answers about pi drives him mad. The film won the Directing Award at the 1988 Sundance Film Festival.

8. An electronic numeric integrator and computer took 70 hours to figure out the first 2,037 decimal places of pi in 1949.

9. We can never find the true value of pi.

10. Pi is also referred to as the “circular constant,” “Archimedes’ constant,” or “Ludolph’s number.

11. The ancient people believed that the pyramids of Giza in Egypt were built on the principles of Pi.

12. The mirror image of 3.14 is “PIE.”

13. The government of America recently recognized Pi Day.

14. If the circumference of the earth were calculated using π rounded to only the ninth decimal place, an error of no more than one quarter of an inch in 25,000 miles would result.

15. There are no occurrences of the sequence 123456 in the first million digits of pi.

16. A mysterious 2008 crop circle in Britain shows a coded image representing the first 10 digits of pi.

17. The symbol for pi (π) has been used regularly in mathematics.

18. The official celebration of Pi starts at 1:59 p.m. to make a proper 3.14159 when joint with the date.

19. Pi Day was started by physicist Larry Shaw at San Francisco’s Exploratorium, where he is known as the Prince of Pi.

20. William Shanks calculated the first 707 digits of pi by hand in the 19th century.

21. When the value of pi is calculated, it will continue infinitely without repetition.

22. Umberto Eco’s famed book Foucault’s Pendulum associates the mysterious pendulum in the novel with the intrigue of pi.

23. Chao Lu holds the world record for remembering the value of pi up to 67,890 digits.

24. Archimedes is the first person, who studied about Pi in the ancient times.

25. Pi is the world’s most predictable mathematical constant.

26. The “Pi-Search Page” is a website that searches a person’s birthday and other well-known numbers in the digits of Pi.

27. Even computers cannot find an accurate value of Pi.

28. Humans calculated pi about 3,000 to 4,000 years ago.

29. The accurate fraction of pi is 0.00000849%.

30. Rajveer Meena of Vellore, India holds the record to memorize the most digits of pi on March 21, 2015, according to Guinness World Records.

31. A Givenchy men’s cologne named Pi is marketed as highlighting the sexual appeal of intelligent and visionary men.

32. Pi can not be written as a rational simple fraction.

33. Pi Day is an annual celebration of the mathematical constant π celebrated on 14 March.

34. The first ten digits of pi’s Engel extraction are 1, 1, 1, 8, 8, 17, 19, 300, 1991, and 2492.

35. William Jones, an English mathematician who studied the Greek letter Ï€ was selected to describe Pi in 1706.

36. Leonardo da Vinci (1452-1519) and artist Albrecht Durer (1471-1528) both briefly worked on “squaring the circle,” or approximating pi.

37. There are no zeros in the first 31 digits of pi.

38. Pi is the sixteenth letter of the Greek alphabet and sixteenth letter in the English alphabet.

39. William Jones introduced the symbol of pi in 1706.

40. Pi is used to calculate both normal distributions and the distribution of prime numbers.