CBSE Class 4 Social Science Calendar and Timeline Worksheet Set 01

Answer: (b) Pope Gregory XIII. Pope Gregory XIII introduced it in 1582.

Teacher's Note:
1. It was a corrected version of the older Julian calendar.
2. Julius Caesar started the Julian calendar, which came before.

Answer: (b) Saka calendar. The Saka calendar is India's national calendar and is used for official purposes along with the Gregorian one.

Teacher's Note:
1. It was adopted on 22 March 1957.
2. The Gregorian calendar is also used for daily work.

Answer: (c) 12. The Gregorian calendar has twelve months from January to December.

Teacher's Note:
1. Their lengths are 28 to 31 days.
2. Leap years add one day to February.

Answer: (c) 1 CE. There is no year zero. The year after 1 BCE is 1 CE.

Teacher's Note:
1. BCE years count backwards towards 1 BCE.
2. CE years then count forwards.

Answer: (c) 2028. 2028 is divisible by 4, so it is a leap year.

Teacher's Note:
1. In a leap year February has 29 days.
2. The year 2026 has 365 days.

Answer: (a) Before Common Era. BCE means Before Common Era and is used in place of BC (Before Christ).

Teacher's Note:
1. CE means Common Era and replaces AD.
2. The numbers of years remain the same.

Answer: True. A calendar helps us plan days, months and festivals.

Teacher's Note:
1. It tells us dates for work, school and festivals.
2. Without it, planning ahead would be difficult.

Answer: False. The Saka calendar is India's national calendar. The Gregorian calendar is used in the Christian world.

Teacher's Note:
1. The two calendars have different month names and starting points.
2. Saka dates are about 78 years behind CE years.

Answer: True. Pope Gregory XIII introduced it in 1582 to correct errors in the Julian calendar.

Teacher's Note:
1. It is now used by most countries.
2. It is the calendar used for school and business.

Answer: False. The calendar goes directly from 1 BCE to 1 CE.

Teacher's Note:
1. This surprises many people.
2. So the time between 1 BCE and 1 CE is one year.

Answer: dates, days (birthdays and holidays also accepted). Calendars record events that we need to remember.

Teacher's Note:
1. A calendar is a plan of the year.
2. People mark special days to remember them.

Answer: Gregorian. It is named after him.

Teacher's Note:
1. It replaced the Julian calendar.
2. Most of the world now follows it.

Answer: 31. In other years Chaitra has 30 days.

Teacher's Note:
1. The extra day makes the Saka leap year 366 days long.
2. The Saka year starts on 22 March, or 21 March in a leap year.

Answer: BCE; CE. They mean Before Common Era and Common Era.

Teacher's Note:
1. The new terms do not depend on any one religion.
2. Historians use them widely.

Answer: January, February, March, April, May, June, July, August, September, October, November, December.

Teacher's Note:
1. Learn them in groups of four.
2. February is the shortest month.

Answer: The Julian calendar was followed. Julius Caesar started it in 45 BCE.

Teacher's Note:
1. It had a small error that added up over centuries.
2. Pope Gregory XIII fixed this in 1582.

Answer: The Saka calendar is used in India for official work, such as the Gazette of India, news broadcasts of All India Radio and government calendars.

Teacher's Note:
1. It is used alongside the Gregorian calendar.
2. Its year number is about 78 less than the CE year.

Answer: India had many local calendars, so a single national calendar was adopted. It gave the whole country one common system for official dates.

Teacher's Note:
1. Having one calendar avoids confusion between regions.
2. It was adopted in 1957 after a study of the older calendars.

Answer: 1. The Saka calendar is India's national calendar; the Gregorian is used worldwide. 2. Saka begins in Chaitra in March; Gregorian begins in January. 3. Saka month names are Chaitra, Vaisakha and so on; Gregorian months are January, February and so on.

Teacher's Note:
1. Both calendars have 365 days in an ordinary year and 366 in a leap year.
2. Their months do not start on the same dates.

Answer: A timeline is a line on which important events are marked in the order in which they happened. It helps us see which events came earlier and which came later.

Teacher's Note:
1. Timelines are drawn from left to right, oldest event first.
2. They are useful in history and in our own lives.

Answer: Republic Day is on 26 January, Independence Day on 15 August and Gandhi Jayanti on 2 October.

Teacher's Note:
1. These are the three national festivals of India.
2. In the Gregorian calendar they fall in January, August and October.

Answer: 500 BCE came earlier. All BCE years come before the Common Era begins.

Teacher's Note:
1. For BCE dates a larger number means a longer time ago.
2. On a timeline, BCE dates are placed to the left of CE dates.