Event page! 0b27200747dc11ac215c076ae268a070 pi-approximation-day
{
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    "event": {
      "id": "0b27200747dc11ac215c076ae268a070",
      "name": "Pi Approximation Day",
      "alternate_names": [
        "Casual Pi Day"
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      "sources": [
        "https://anydayguide.com/calendar/2983",
        "https://blogs.loc.gov/folklife/2014/07/celebrating-pi/",
        "https://en.wikipedia.org/wiki/Pi_Day",
        "https://itotd.com/articles/3747/pi-approximation-day/",
        "https://www.piapproximationday.com/",
        "https://www.piday.org/",
        "https://www.timeanddate.com/holidays/fun/pi-approximation-day"
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          "observed": "annually on July 22nd",
          "observed_html": "annually on <a href=\"https://www.checkiday.com/7/22\">July 22nd</a>",
          "observed_markdown": "annually on [July 22nd](https://www.checkiday.com/7/22)",
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        "popularity": "★★★★★"
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      "tags": [
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          "name": "Food & Drink"
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          "name": "Science & Technology"
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      "description": {
        "text": "Pi Approximation Day celebrates the pi symbol (π) and its importance to mathematics. The symbol is a Greek letter, and it is used in mathematics to represent the ratio of the circumference of a circle to its diameter. The first digits of this ratio are 3.14159, and the number continues infinitely without a pattern, being an irrational number. It has been calculated to over one trillion digits after the decimal point. The symbol \"π\" was first used in 1706 by William Jones. It gained in popularity after being used by Swiss mathematician Leonhard Euler in 1737.\nPi can be expressed as the fraction 22/7, which is an approximation of its actual value (hence the word \"approximation\" in the day's title). Pi Approximation Day is particularly celebrated in countries that write their dates in the date/month format, where today's date would be written as 22 July or 22/7. Those who write their dates in the month/date format are more likely to celebrate Pi Day. However, both holidays can be celebrated no matter where one lives. Pi Approximation Day may have first been celebrated at the Chalmers University of Technology in Gothenburg, Sweden.",
        "html": "<p>Pi Approximation Day celebrates the pi symbol (π) and its importance to mathematics. The symbol is a Greek letter, and it is used in mathematics to represent the ratio of the circumference of a circle to its diameter. The first digits of this ratio are 3.14159, and the number continues infinitely without a pattern, being an irrational number. It has been calculated to over one trillion digits after the decimal point. The symbol \"π\" was first used in 1706 by William Jones. It gained in popularity after being used by Swiss mathematician Leonhard Euler in 1737.</p>\n<p>Pi can be expressed as the fraction 22/7, which is an approximation of its actual value (hence the word \"approximation\" in the day's title). Pi Approximation Day is particularly celebrated in countries that write their dates in the date/month format, where today's date would be written as 22 July or 22/7. Those who write their dates in the month/date format are more likely to celebrate <a href=\"https://www.checkiday.com/99733b001d1d263a392cc5e856c42c5f/pi-day\">Pi Day</a>. However, both holidays can be celebrated no matter where one lives. Pi Approximation Day may have first been celebrated at the Chalmers University of Technology in Gothenburg, Sweden.</p>",
        "markdown": "Pi Approximation Day celebrates the pi symbol (π) and its importance to mathematics. The symbol is a Greek letter, and it is used in mathematics to represent the ratio of the circumference of a circle to its diameter. The first digits of this ratio are 3.14159, and the number continues infinitely without a pattern, being an irrational number. It has been calculated to over one trillion digits after the decimal point. The symbol \"π\" was first used in 1706 by William Jones. It gained in popularity after being used by Swiss mathematician Leonhard Euler in 1737.\r\n\r\nPi can be expressed as the fraction 22/7, which is an approximation of its actual value (hence the word \"approximation\" in the day's title). Pi Approximation Day is particularly celebrated in countries that write their dates in the date/month format, where today's date would be written as 22 July or 22/7. Those who write their dates in the month/date format are more likely to celebrate [Pi Day](https://www.checkiday.com/99733b001d1d263a392cc5e856c42c5f/pi-day). However, both holidays can be celebrated no matter where one lives. Pi Approximation Day may have first been celebrated at the Chalmers University of Technology in Gothenburg, Sweden."
      },
      "how_to_observe": {
        "text": "Here are a few ideas on how to celebrate the day:\n\nEat some pie—stop at a restaurant or bakery, or make your own.\nEat some pizza.\nMemorize as many digits of π as you can. You can start by learning the first 10,000 digits. Quiz yourself or challenge your friends to see who can learn the most.\nDo some math problems using pi.\n",
        "html": "<p>Here are a few ideas on how to celebrate the day:</p>\n<ul>\n<li>Eat some pie—stop at a restaurant or bakery, or <a href=\"https://www.allrecipes.com/search/results/?wt=pie&amp;sort=re\">make your own</a>.</li>\n<li>Eat some pizza.</li>\n<li>Memorize as many digits of π as you can. You can start by learning the <a href=\"https://www.cnn.com/2017/03/13/health/pi-digits-trnd\">first 10,000 digits</a>. <a href=\"https://www.sporcle.com/games/g/pi\">Quiz yourself</a> or challenge your friends to see who can learn the most.</li>\n<li>Do some <a href=\"http://mentalfloss.com/article/534719/pi-day-math-problems-to-solve\">math problems</a> using pi.</li>\n</ul>",
        "markdown": "Here are a few ideas on how to celebrate the day:\r\n\r\n* Eat some pie—stop at a restaurant or bakery, or [make your own](https://www.allrecipes.com/search/results/?wt=pie&sort=re).\r\n* Eat some pizza.\r\n* Memorize as many digits of π as you can. You can start by learning the [first 10,000 digits](https://www.cnn.com/2017/03/13/health/pi-digits-trnd). [Quiz yourself](https://www.sporcle.com/games/g/pi) or challenge your friends to see who can learn the most.\r\n* Do some [math problems](http://mentalfloss.com/article/534719/pi-day-math-problems-to-solve) using pi."
      },
      "occurrences": [
        {
          "date": "07/22/2024",
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        {
          "date": "07/22/2025",
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        {
          "date": "07/22/2026",
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          "date": "07/22/2027",
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          "date": "07/22/2028",
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    "tz": "America/Chicago",
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