Old Style and New Style dates

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/old-style-and-new-style-dates

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. How long is Old Style and New Style dates?365.25 days
2. What is the gregorian calendar reform year (papal decree)?1582
3. What is the english calendar change year?1752
4. Why did the calendar change from Julian to Gregorian?The Julian calendar added a leap day every four years, but the real year is a little shorter, so after many years the seasons drifted and the church needed a more accurate calendar.
5. How did England change its calendar in 1752?England moved the start of the year to January 1 and skipped 11 days in September 1752, so September 2 was followed by September 14.

Tropical Year: The time it takes for the Earth to complete one orbit around the Sun relative to the seasons.
Vernal Equinox: The moment in spring when the sun crosses the celestial equator, and day and night are of equal length.
Chronological Discrepancy: A difference or inconsistency in the order or timing of historical events.