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  1. 13 (number) - Wikipedia

    13 (thirteen) is the natural number following 12 and preceding 14. Folklore surrounding the number 13 appears in many cultures around the world: one theory is that this is due to the …

  2. Why Is 13 Considered an Unlucky Number? — History Facts

    Oct 24, 2024 · The number 13 has long been considered unlucky in many Western cultures. Even today — in a world far less superstitious than it was in the past — a surprising amount of …

  3. Number 13 facts

    Apollo 13 is a 1995 American film that recounts the problems of the failed Apollo 13 lunar mission. The film is a free adaptation of the novel Lost Moon, written by Jim Lovell (the Apollo 13 …

  4. What’s So Unlucky About the Number 13? - HISTORY

    Sep 13, 2013 · But what’s so unlucky about the number 13, and how did this numerical superstition get started?

  5. About The Number 13 - numeraly.com

    Explore the mystery of the number 13! Uncover its meanings, facts, religious significance, angel number interpretations, and its role in arts and literature. Dive into the world of 13!

  6. THIRTEEN Definition & Meaning | Dictionary.com

    Spelling tips for 13 The word thirteen (13) is hard to spell because it doesn’t simply combine the spelling of the base number (three) with the suffix -teen, as is done in other easy-to-remember …

  7. 13-Year-Old Growth and Development Milestones - Parents

    Nov 6, 2025 · Explore the key changes in 13-year-olds' physical, cognitive, and social development, with supportive advice to help them thrive.

  8. Number symbolism - Numerology, Mysticism, Occultism

    There are 13 lunar months in the year (with a small error), which led the Maya and the Hebrews to consider 13 as auspicious. In medieval theology 13 = 10 + 3 (Commandments plus Trinity), …

  9. 13 (number) Facts for Kids

    In Roman numerals, which were used by the ancient Romans, the number 13 is written as XIII. The 'X' stands for ten, and 'III' stands for three, making it ten plus three.

  10. Facts About The Unlucky Number: 13 - The Fact Site

    Jun 1, 2010 · The number thirteen is considered as the only unlucky number, but why? Read the facts about the number 13 and its reasons for being unlucky.