Cinco de Mayo Shares Spotlight with National Square Root Day and More Unique Holidays

While many are celebrating Cinco de Mayo today, May 5, 2025 also brings a lineup of lesser-known but fascinating holidays, highlighted on this morning’s Hashtag Holiday Calendar and Pop Quiz, brought to you by Inland Empire Health Plan.

National Square Root Day only happens when both the day and month are the square root of the last two digits of the year. That makes today 5-5-25 a rare math lover’s treat—the last one was 4-4-16 and the next will be 6-6-36.

National Hoagie Day celebrates the beloved sub sandwich—also known as a grinder, torpedo, or hero. Whether packed with meats, cheeses, veggies, or sauces, it’s the perfect excuse to enjoy a hearty meal.

Great Lakes Awareness Day encourages people to learn more about the five freshwater lakes—Ontario, Erie, Huron, Michigan, and Superior—which touch eight U.S. states. These lakes are among the largest bodies of freshwater in the world.

National Cartoonist Day pays tribute to the creative minds behind our favorite animated and print cartoons. Whether you're a fan of The Jetsons, Doonesbury, or Peanuts, today’s the day to celebrate the art of illustration.

Two pop quizzes rounded out the morning segment:

1. Which virtual cartoon band features members 2-D, Murdoch, Noodle, and Russell?
   Correct answer: B. Gorillaz
   Known for hits like On Melancholy Hill and Dare, Gorillaz continues to blend music and animation in unique ways.

2. What’s the name of Inspector Gadget’s clever niece?
   Correct answer: B. Penny
   Always one step ahead, Penny helped her uncle crack the case—without him ever realizing it.

Happy Cinco de Mayo—and happy celebrating all the quirky holidays that come with it!

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