leap year: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: University of Warwick - Knowledge Center - What exactly is a leap year and why is it important? | Mar 28, 2026 | ||
| Add new Web site: CBS News - What is a leap year, and why do they happen? Everything to know about Leap Day. | Jan 15, 2026 | ||
| Add new Web site: NPR - Why do we leap day? We remind you (so you can forget for another 4 years). | Jun 06, 2025 | ||
| Add new Web site: PBS News - Why do leap years have 366 days? | Apr 24, 2025 | ||
| Add new Web site: BBC - The mathematical muddle created by leap years. | Feb 14, 2025 | ||
| Add new Web site: University of Miami - News - What exactly is a leap year? | Aug 20, 2024 | ||
| Add new Web site: LiveScience - Why do we have leap years? And how did they come about? | Jun 27, 2024 | ||
| Media added. | Jan 26, 2024 | ||
| Add new Web site: University of Warwick - Knowledge Center - What exactly is a leap year and why is it important? | Oct 20, 2023 | ||
| Add new Web site: Smithsonian National Air and Space Museum - The Science of Leap Year. | Aug 11, 2023 | ||
| Add new Web site: Macquarie University - The Lighthouse - Please explain: Why do we have leap years? | May 18, 2023 | ||
| Add new Web site: Washington State University - College of Arts and Sciences - Origins of Leap Year. | Sep 21, 2022 | ||
| Add new Web site: National Geographic Kids - What is a leap year? | Apr 25, 2022 | ||
| Add new Web site: LiveAbout - 5 Weird Facts About Leap Years. | Dec 05, 2019 | ||
| Add new Web site: Royal Museums Greenwich - Which years are leap years and can you have leap seconds? | Feb 25, 2019 | ||
| Add new Web site: KidsGeo.com - Geography For Kids - Leap Year. | Jan 10, 2017 | ||
| Add new Web site: Math is Fun - Leap Years. | Mar 27, 2014 | ||
| Add new Web site: Enchanted Learning - Leap Year. | Apr 08, 2013 | ||
| Add new Web site: Wolfram Research - Eric Weisstein's World of Astronomy - Leap Year. | Aug 09, 2010 | ||
| Add new Web site: Buzzle.com - Leap Year. | Aug 09, 2010 | ||
| Article added to new online database. | Jul 20, 1998 |
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