When is Easter and how is the date determined? Here's why it changes

Unlike most holidays, Easter changes dates each year for some confusing reasons. Here's the science behind the date and why ...
CNBCTV18

April Fools' Day: How a calendar shift, ancient festivals and spring mischief shaped a global prank tradition

April Fools Day explores its debated origins from calendar changes to ancient festivals and springtime tricks, revealing how ...

Easter is April 5, why does its date change every year?

These graphics explain why Easter Sunday changes each year based on ancient interpretations of the solar and lunar cycles.
TimeGhost on MSN

Watch entire countries erase a day when politics and trade overruled the calendar

Changing a calendar sounds harmless until entire countries suddenly lose a day and millions wake up in a different timeline.
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Hold up—we’re actually supposed to have 13 months?

The Gregorian calendar is a relatively recent invention, and it's pretty far removed from how we originally tracked our days and seasons. Up until 1582, most cultures known to us relied on a 13-moon ...
WHIO

It’s the end of February: why this year isn’t a leap year and why we have them in the first place

DAYTON — We’ve been using the Gregorian calendar since 1582, here’s how it keeps our seasons and calendar on track. Hey it’s Storm Center 7 Meteorologist Ryan Marando. You may have noticed that this ...