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

In 2025, Easter will take place on Sunday, April 20. On this day, Christians around the world will gather at church services, ...

Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar ...

Easter's date changes annually because it is based on the lunar calendar. It occurs on the first Sunday after the Paschal ...

House Republicans are so intent on avoiding tough votes on President Trump’s tariffs that they have rewritten the calendar.

Pohela Boishakh, also known as Poila Baisakh or Noboborsho is the traditional new year day of the Bengali people. The day is celebrated with joy, cultural pride and enthusiasm by Bengalis worldwide.

Easter Sunday falls on a different day each year. Here's what to know about the date tradition, and why the holiday is celebrated.

The simplest way to explain why Easter falls on a different date each year is this: It falls on the first Sunday after the full moon that follows the spring equinox.