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Birthday Calendar Lab

A birthday board about anniversaries, calendar rules, leap-year language, months, and weeks.

Swipe the board sideways · 4 categories

Birthday Calendar Lab
Birthday BasicsCalendar RulesLeap-Year LanguageMonths and Weeks
100Name the yearly anniversary of a person's birth.100Identify the calendar used in most parts of the world.100Give the first alternative name listed for a leap year.100What calendar unit approximates a natural phase cycle of the Moon?
200An organization can figuratively mark its own birth. What kind of entity does the definition name?200Place the calendar's introduction in its stated month and year.200Supply the second alternative term paired with intercalary year.200Which celestial word is identified as a cognate of month?
300Across what breadth of societies does the source say people celebrate birthdays?300Who issued the papal bull that put the calendar into effect?300What name is given to an extra day inserted into selected years?300Give the stated span for the length of a Gregorian month.
400Select the paper greeting specifically listed among common birthday customs.400Which earlier system did the new calendar modify and replace?400Which type of calendar may add a month instead of a day?400How long is a week in the western and international context?
500Differentiate the complete date when someone was born from its yearly anniversary.500State the average calendar-year length produced by the revised leap spacing.500Which timing problem between calendars and seasons does insertion help avoid?500Locate a week between the two calendar periods named by the source.
600What term means a period spanning ten years?600How many days are in a common, non-leap year?600Which month receives an extra day during a leap year?600How many months make one calendar year?
700Which weekday comes immediately before Sunday?

Ages 10 to 14 · 25 of 25 clues written · final round · about 20 minutes

Open it in the maker

26 of 26 answers carry the sentence they were checked against

Play time assumes about 40 seconds a clue plus three minutes for the final round. Nothing is saved to a server and no account is needed. How answers are checked.

Player sheet

Birthday Calendar Lab · Ages 10 to 14 · answers are on the host key

Birthday Basics

  1. 100 Name the yearly anniversary of a person's birth.
  2. 200 An organization can figuratively mark its own birth. What kind of entity does the definition name?
  3. 300 Across what breadth of societies does the source say people celebrate birthdays?
  4. 400 Select the paper greeting specifically listed among common birthday customs.
  5. 500 Differentiate the complete date when someone was born from its yearly anniversary.
  6. 600 What term means a period spanning ten years?

Calendar Rules

  1. 100 Identify the calendar used in most parts of the world.
  2. 200 Place the calendar's introduction in its stated month and year.
  3. 300 Who issued the papal bull that put the calendar into effect?
  4. 400 Which earlier system did the new calendar modify and replace?
  5. 500 State the average calendar-year length produced by the revised leap spacing.
  6. 600 How many days are in a common, non-leap year?

Leap-Year Language

  1. 100 Give the first alternative name listed for a leap year.
  2. 200 Supply the second alternative term paired with intercalary year.
  3. 300 What name is given to an extra day inserted into selected years?
  4. 400 Which type of calendar may add a month instead of a day?
  5. 500 Which timing problem between calendars and seasons does insertion help avoid?
  6. 600 Which month receives an extra day during a leap year?

Months and Weeks

  1. 100 What calendar unit approximates a natural phase cycle of the Moon?
  2. 200 Which celestial word is identified as a cognate of month?
  3. 300 Give the stated span for the length of a Gregorian month.
  4. 400 How long is a week in the western and international context?
  5. 500 Locate a week between the two calendar periods named by the source.
  6. 600 How many months make one calendar year?
  7. 700 Which weekday comes immediately before Sunday?

Final round: Calendar Origins

This papal bull preceded the October 1582 start of the Gregorian calendar.

Host key

Birthday Calendar Lab · keep this sheet · it carries the answers

Birthday Basics

  1. 100 Name the yearly anniversary of a person's birth. Response: birthdayChecked against: A birthday is the anniversary of the birth of a person or the figurative birth of an institution.Source: https://en.wikipedia.org/w/index.php?title=Birthday&oldid=1359590633
  2. 200 An organization can figuratively mark its own birth. What kind of entity does the definition name? Response: institutionChecked against: A birthday is the anniversary of the birth of a person or the figurative birth of an institution.Source: https://en.wikipedia.org/w/index.php?title=Birthday&oldid=1359590633
  3. 300 Across what breadth of societies does the source say people celebrate birthdays? Response: numerous culturesChecked against: Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.Source: https://en.wikipedia.org/w/index.php?title=Birthday&oldid=1359590633
  4. 400 Select the paper greeting specifically listed among common birthday customs. Response: birthday cardsChecked against: Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.Source: https://en.wikipedia.org/w/index.php?title=Birthday&oldid=1359590633
  5. 500 Differentiate the complete date when someone was born from its yearly anniversary. Response: birthdateChecked against: There is a distinction between birthday and birthdate (also known as date of birth): the former, except for February 29, occurs each year (e.g. January 15), while the latter is the complete date when a person was born (e.g. January 15, 2001).Source: https://en.wikipedia.org/w/index.php?title=Birthday&oldid=1359590633
  6. 600 What term means a period spanning ten years? Response: A decadeChecked against: Any period of ten years is a 'decade' or 'decennium'.Source: https://en.wikipedia.org/w/index.php?title=Decade&oldid=1363476845

Calendar Rules

  1. 100 Identify the calendar used in most parts of the world. Response: Gregorian calendarChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277
  2. 200 Place the calendar's introduction in its stated month and year. Response: October 1582Checked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277
  3. 300 Who issued the papal bull that put the calendar into effect? Response: Pope Gregory XIIIChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277
  4. 400 Which earlier system did the new calendar modify and replace? Response: Julian calendarChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277
  5. 500 State the average calendar-year length produced by the revised leap spacing. Response: 365.2425 daysChecked against: The principal change was to space leap years slightly differently to make the average calendar year 365.2425 days long rather than the Julian calendar's 365.25 days, thus more closely approximating the 365.2422-day "tropical" or "solar" year that is determined by the Earth's revolution around the Sun.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277
  6. 600 How many days are in a common, non-leap year? Response: 365Checked against: A common year is a calendar year with 365 days, as distinguished from a leap year, which has 366 days.Source: https://en.wikipedia.org/w/index.php?title=Common_year&oldid=1360765352

Leap-Year Language

  1. 100 Give the first alternative name listed for a leap year. Response: intercalary yearChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source: https://en.wikipedia.org/w/index.php?title=Leap_year&oldid=1365633748
  2. 200 Supply the second alternative term paired with intercalary year. Response: bissextile yearChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source: https://en.wikipedia.org/w/index.php?title=Leap_year&oldid=1365633748
  3. 300 What name is given to an extra day inserted into selected years? Response: leap dayChecked against: The Gregorian calendar, the world's most widely used civil calendar, makes a further adjustment for the small error in the Julian algorithm; this extra leap day occurs in each year that is a multiple of 4, except for years evenly divisible by 100 but not by 400.Source: https://en.wikipedia.org/w/index.php?title=Leap_year&oldid=1365633748
  4. 400 Which type of calendar may add a month instead of a day? Response: lunisolar calendarChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source: https://en.wikipedia.org/w/index.php?title=Leap_year&oldid=1365633748
  5. 500 Which timing problem between calendars and seasons does insertion help avoid? Response: driftChecked against: By inserting an additional day—a leap day—or an additional month—a leap month—into some years but not others, the drift between a civilisation's dating system and the physical properties of the Solar System can be avoided.Source: https://en.wikipedia.org/w/index.php?title=Leap_year&oldid=1365633748
  6. 600 Which month receives an extra day during a leap year? Response: FebruaryChecked against: Under the reforms that instituted the Julian calendar, Intercalaris was abolished, leap years occurred regularly every fourth year, and in leap years February gained a 29th day.Source: https://en.wikipedia.org/w/index.php?title=February&oldid=1358896942

Months and Weeks

  1. 100 What calendar unit approximates a natural phase cycle of the Moon? Response: monthChecked against: A month is a unit of time, used with calendars, that is approximately as long as a natural phase cycle of the Moon; the words month and Moon are cognates.Source: https://en.wikipedia.org/w/index.php?title=Month&oldid=1363965180
  2. 200 Which celestial word is identified as a cognate of month? Response: MoonChecked against: A month is a unit of time, used with calendars, that is approximately as long as a natural phase cycle of the Moon; the words month and Moon are cognates.Source: https://en.wikipedia.org/w/index.php?title=Month&oldid=1363965180
  3. 300 Give the stated span for the length of a Gregorian month. Response: between 28 and 31 daysChecked against: Calendars that developed from the Roman calendar system, such as the internationally used Gregorian calendar, divide the year into 12 months, each of which lasts between 28 and 31 days.Source: https://en.wikipedia.org/w/index.php?title=Month&oldid=1363965180
  4. 400 How long is a week in the western and international context? Response: seven daysChecked against: A week (in the Western and international context) is a unit of time equal to seven days.Source: https://en.wikipedia.org/w/index.php?title=Week&oldid=1364431316
  5. 500 Locate a week between the two calendar periods named by the source. Response: between a day and a monthChecked against: It is the standard calendrical period between a day and a month in most parts of the world.Source: https://en.wikipedia.org/w/index.php?title=Week&oldid=1364431316
  6. 600 How many months make one calendar year? Response: 12Checked against: Calendars that developed from the Roman calendar system, such as the internationally used Gregorian calendar, divide the year into 12 months, each of which lasts between 28 and 31 days.Source: https://en.wikipedia.org/w/index.php?title=Month&oldid=1363965180
  7. 700 Which weekday comes immediately before Sunday? Response: SaturdayChecked against: Saturday is the day of the week between Friday and Sunday.Source: https://en.wikipedia.org/w/index.php?title=Saturday&oldid=1363603171

Final round: Calendar Origins

This papal bull preceded the October 1582 start of the Gregorian calendar. Response: Inter gravissimasChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source: https://en.wikipedia.org/w/index.php?title=Gregorian_calendar&oldid=1365777277

Every clue, every answer, and what it was checked against

This is what prints on the host key.

Birthday Basics

  1. Name the yearly anniversary of a person's birth. 100

    birthdayChecked against: A birthday is the anniversary of the birth of a person or the figurative birth of an institution.Source, pinned revision

  2. An organization can figuratively mark its own birth. What kind of entity does the definition name? 200

    institutionChecked against: A birthday is the anniversary of the birth of a person or the figurative birth of an institution.Source, pinned revision

  3. Across what breadth of societies does the source say people celebrate birthdays? 300

    numerous culturesChecked against: Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.Source, pinned revision

  4. Select the paper greeting specifically listed among common birthday customs. 400

    birthday cardsChecked against: Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.Source, pinned revision

  5. Differentiate the complete date when someone was born from its yearly anniversary. 500

    birthdateChecked against: There is a distinction between birthday and birthdate (also known as date of birth): the former, except for February 29, occurs each year (e.g. January 15), while the latter is the complete date when a person was born (e.g. January 15, 2001).Source, pinned revision

  6. What term means a period spanning ten years? 600

    A decadeChecked against: Any period of ten years is a 'decade' or 'decennium'.Source, pinned revision

Calendar Rules

  1. Identify the calendar used in most parts of the world. 100

    Gregorian calendarChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source, pinned revision

  2. Place the calendar's introduction in its stated month and year. 200

    October 1582Checked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source, pinned revision

  3. Who issued the papal bull that put the calendar into effect? 300

    Pope Gregory XIIIChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source, pinned revision

  4. Which earlier system did the new calendar modify and replace? 400

    Julian calendarChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source, pinned revision

  5. State the average calendar-year length produced by the revised leap spacing. 500

    365.2425 daysChecked against: The principal change was to space leap years slightly differently to make the average calendar year 365.2425 days long rather than the Julian calendar's 365.25 days, thus more closely approximating the 365.2422-day "tropical" or "solar" year that is determined by the Earth's revolution around the Sun.Source, pinned revision

  6. How many days are in a common, non-leap year? 600

    365Checked against: A common year is a calendar year with 365 days, as distinguished from a leap year, which has 366 days.Source, pinned revision

Leap-Year Language

  1. Give the first alternative name listed for a leap year. 100

    intercalary yearChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source, pinned revision

  2. Supply the second alternative term paired with intercalary year. 200

    bissextile yearChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source, pinned revision

  3. What name is given to an extra day inserted into selected years? 300

    leap dayChecked against: The Gregorian calendar, the world's most widely used civil calendar, makes a further adjustment for the small error in the Julian algorithm; this extra leap day occurs in each year that is a multiple of 4, except for years evenly divisible by 100 but not by 400.Source, pinned revision

  4. Which type of calendar may add a month instead of a day? 400

    lunisolar calendarChecked against: A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year.Source, pinned revision

  5. Which timing problem between calendars and seasons does insertion help avoid? 500

    driftChecked against: By inserting an additional day—a leap day—or an additional month—a leap month—into some years but not others, the drift between a civilisation's dating system and the physical properties of the Solar System can be avoided.Source, pinned revision

  6. Which month receives an extra day during a leap year? 600

    FebruaryChecked against: Under the reforms that instituted the Julian calendar, Intercalaris was abolished, leap years occurred regularly every fourth year, and in leap years February gained a 29th day.Source, pinned revision

Months and Weeks

  1. What calendar unit approximates a natural phase cycle of the Moon? 100

    monthChecked against: A month is a unit of time, used with calendars, that is approximately as long as a natural phase cycle of the Moon; the words month and Moon are cognates.Source, pinned revision

  2. Which celestial word is identified as a cognate of month? 200

    MoonChecked against: A month is a unit of time, used with calendars, that is approximately as long as a natural phase cycle of the Moon; the words month and Moon are cognates.Source, pinned revision

  3. Give the stated span for the length of a Gregorian month. 300

    between 28 and 31 daysChecked against: Calendars that developed from the Roman calendar system, such as the internationally used Gregorian calendar, divide the year into 12 months, each of which lasts between 28 and 31 days.Source, pinned revision

  4. How long is a week in the western and international context? 400

    seven daysChecked against: A week (in the Western and international context) is a unit of time equal to seven days.Source, pinned revision

  5. Locate a week between the two calendar periods named by the source. 500

    between a day and a monthChecked against: It is the standard calendrical period between a day and a month in most parts of the world.Source, pinned revision

  6. How many months make one calendar year? 600

    12Checked against: Calendars that developed from the Roman calendar system, such as the internationally used Gregorian calendar, divide the year into 12 months, each of which lasts between 28 and 31 days.Source, pinned revision

  7. Which weekday comes immediately before Sunday? 700

    SaturdayChecked against: Saturday is the day of the week between Friday and Sunday.Source, pinned revision

Final round

  1. This papal bull preceded the October 1582 start of the Gregorian calendar.

    Inter gravissimasChecked against: The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar.Source, pinned revision

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