It’s Officially the Last Palindrome Week of the Century—Here’s What It Means

See ya in the 22nd century!

calendar palindrome week
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Tuesday, September 10, is officially the start of the last ever palindrome week until next century. But what does that actually mean?

According to Merriam-Webster, the definition of a palindrome is "a word, verse, or sentence (such as "Able was I ere I saw Elba") or a number (such as 1881) that reads the same backward or forward." That means that this week of this year—and this week only—the upcoming dates will read the same both forward and backward. Freaky, huh?

While palindrome weeks aren't exactly a rarity in recent times (they've been happening once a year since 2011) this week officially marks the last of these special dates until we reach the next century, according to the Farmers' Almanac. Using the month-day-year format, each century that occurs has exactly nine years with a palindrome week in it—"week" meaning 10 days, for these purposes—and the next time they occur, it'll be in the years 2111-2119.

Here are this week's palindrome dates, so you can mark the momentous occasions down accordingly:

  • 9-10-19
  • 9-11-19
  • 9-12-19
  • 9-13-19
  • 9-14-19
  • 9-15-19
  • 9-16-19
  • 9-17-19
  • 9-18-19
  • 9-19-19

    To celebrate this special week of palindrome dates, we suggest you get yourself a taco cat, maybe an oozy rat in a sanitary zoo, or even some out-of-this-world UFO tofu. Whatever palindrome your heart desires!

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