Explore articles on calendars and timekeeping systems, from the Gregorian and Julian to the Maya and Chinese, plus unique calendar formats and history.
Discover the history and science of calendars
Calendars Old and New is a website dedicated to exploring the fascinating world of calendars and timekeeping systems. Here, you can dive into articles covering a wide range of topics, from the familiar Gregorian and Julian calendars to more specialized systems like the Maya, Chinese, and unique experimental calendars.
Whether you're curious about how different cultures have measured time, want to learn about the origins of modern date formats, or are interested in historical debates about calendar reform, this site offers in-depth writings by various scholars. It's a great resource for students, researchers, or anyone with an interest in history, astronomy, or the science of time.
You'll find detailed explanations, historical context, and references to both ancient and modern calendar systems. If you've ever wondered how leap years work, what Julian day numbers mean, or the stories behind calendar changes, this site is a welcoming place to start your exploration.
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