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

While it’s not a federally recognized holiday, April 15 has become known as Tax Day in the United States. What is Tax Day? The day denotes when most people’s taxes are due to the Internal Revenue ...

Easter 2025 is this Sunday, April 20. That’s super late. It feels odd to have Easter so late, right? Why isn’t it on the same day each year, like Christmas? Well, it all has to do with the full moon ...