Последние добавленные видео:
history-of-leap-year
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9 years ago
3682 9 years ago 1:19A brief history of leap year
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6 years ago
46 6 years ago 5:02The Origin & Purpose of Leap Years Video & Lesson Transcript Study com
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13 years ago
5696694 13 years ago 3:59What is a Leap Year?
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2 months ago
3 2 months ago 2:15What Is The History Of Leap Year? - Science Through Time
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5 years ago
3319977 5 years ago 8:41Why Do We Have LEAP YEARS? | What Is A LEAP YEAR? | The Dr Binocs Show | Peekaboo Kidz
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1 day ago
213 1 day ago 5:54The Forgotten 13-Month Calendar: When Every Month Was Equal
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1 year ago
8 1 year ago 6:35The Secret History of Leap Years: Why We Have Them and Why They Matter
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9 years ago
66 9 years ago 10:01The Story of Leap Year (February 29th)
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3 months ago
12 3 months ago 8:56The Fascinating History of Leap Year: How and Why It Was Invented
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9 years ago
49441 9 years ago 3:04Why Do We Have Leap Years? The History of Leap Day - FreeSchool
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1 year ago
10994 1 year ago 1:01Happy Leap Day! Check out my videos on a History of Time. #leapday #history #leapyear
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6 years ago
778 6 years ago 3:06Christian Origins of Leap Year, the Calendar, and April Fools Day
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1 year ago
1190 1 year ago 4:53History of Leap Day for Kids | Stinkí Pigg Studios
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15 years ago
3479 15 years ago 5:14The Philosophy of LEAPYEAR
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1 year ago
359 1 year ago 3:01Leap Year Skipping Explained