1877

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/1877

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 start day?Monday
2. What is the gregorian calendar lead?12 days ahead of the Julian calendar
3. What was special about the start of the year 1877?In 1877, the year began on Monday in the Gregorian calendar and on Saturday in the Julian calendar, showing a 12‑day difference.
4. Why were there two different days for the start of 1877?The Gregorian and Julian calendars had drifted apart over time, so each calendar marked the new year on a different weekday.

Gregorian Calendar Reform: The adjustment made to the Julian calendar in 1582 to improve its accuracy regarding the solar year.
Solar Year: The time it takes for the Earth to complete one orbit around the Sun, approximately 365.2422 days.
Calendrical Drift: The gradual accumulation of error in a calendar system that causes it to fall out of sync with astronomical events.
Standardization: The process of establishing uniform methods, rules, or systems that are widely accepted and used.