1552

High school (ages 12+)
Mathematics & Numbers

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/1552

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 leap year designation?1552 was a leap year, featuring February 29th, totaling 366 days
2. What is the start day of the year?Friday. The year commenced on a Friday under the Julian reckoning
3. What made 1552 a leap year?1552 had an extra day because the Julian calendar adds a leap day every four years to keep the calendar close to Earth's orbit around the Sun.
4. Why did February have 29 days in 1552?February had 29 days in 1552 because it was a leap year, so the extra day was added to keep the calendar in sync with the tropical year.

Julian Calendar: A solar calendar introduced in 45 BCE, notable for its quadrennial leap year system.
Tropical Year: The time it takes for the Earth to complete one orbit around the Sun relative to the seasons.
Intercalary Day: An extra day (like February 29th) inserted into a calendar to keep it synchronized with astronomical events.
Vernal Equinox: The moment in spring when the Sun crosses the celestial equator, marking the start of astronomical spring.