March 31

High school (ages 12+)
Holidays & Celebrations

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/march-31

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the gregorian calendar day number?90th day (91st in leap years)
2. What is the days remaining in year?275 days
3. What day of the year is March 31?March 31 is the 90th day of the year, or the 91st day in a leap year.
4. Why is March 31 important in calendars?It marks about one‑quarter of the year and helps keep the calendar in sync with Earth’s orbit.

Gregorian calendar: The solar calendar, introduced in 1582, that is the most widely used civil calendar in the world.
Leap year: A year containing 366 days, including an extra day (February 29), to synchronize the calendar with the Earth's orbit.
Vernal equinox: The astronomical event marking the beginning of spring in the Northern Hemisphere, when the sun crosses the celestial equator.
Temporal marker: A specific point in time used as a reference for events, planning, or historical record-keeping.