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Leap year: Standards, Leap day in the Julian and Gregorian calendars & Hebrew calendar

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. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year. Since astronomical events and seasons…

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Leap year topic overview

The analysis highlights Standards, Leap day in the Julian and Gregorian calendars and Hebrew calendar as prominent areas in the source structure around Leap year.

Related topics
112
Source areas
11
Connected nodes
123
Extracted relationships
190
Concept neighborhoods
58
Bridge connections
123

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Leap day in the Julian and Gregorian calendars · 42 topics
Overview · 21 topics
Hebrew calendar · 14 topics
Islamic calendars · 8 topics
Julian calendar · 7 topics
Gregorian calendar · 6 topics
Bengali, Indian and Thai calendars · 5 topics
Chinese calendar · 5 topics
Coptic and Ethiopian calendars · 2 topics
Ancient Egyptian calendar · 1 topics
Baháʼí calendar · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Julian calendar

Gregorian calendar

Leap day in the Julian and Gregorian calendars

Baháʼí calendar

Bengali, Indian and Thai calendars

Chinese calendar

Hebrew calendar

Islamic calendars

Coptic and Ethiopian calendars

Ancient Egyptian calendar

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Leap year connects Entity context

The extracted context around Leap year shows recurring relationship patterns in the source. For example, Leap year → August, Baptist, Christian, Church, Common Prayer, Compline, Eastern Orthodox Church, England, England's Book, February, First, Head, Iceland, In, John, John Cassian, Kalends, Lenten, March, Mart Another extracted example is Leap year → All, Bede, By, Censorinus, Easter, February, For, Gregorian, III, In, In Caesar's, IV, Julian, Kal, Kalendas Martias, Kalends, Macrobius, March, Mart, Romans. Use these groups to spot repeated connection types before inspecting the individual relationships.

Leap year

Top relations

related to Liturgical practices · 39
Leap year → August, Baptist, Christian, Church, Common Prayer, Compline, Eastern Orthodox Church, England, England's Book, February, First, Head, Iceland, In, John, John Cassian, Kalends, Lenten, March, Mart
related to Julian reform · 24
Leap year → All, Bede, By, Censorinus, Easter, February, For, Gregorian, III, In, In Caesar's, IV, Julian, Kal, Kalendas Martias, Kalends, Macrobius, March, Mart, Romans
related to Julian calendar · 20
Leap year → BC, Caesar's, Catholic Church, Consequently, February, Gregorian, His, In, January, Julian, Julius Caesar, March, Numa Pompilius, On, Prior, Roman, Romans, The Julian, This, When Caesar
see also · 19
Leap year → Algorithm, Calendar, Century, FebruaryLeap, French Republican CalendarZeller's, FridayLeap, Holidays, Intermittent, Issue, MondayLeap, SaturdayLeap, Significant, SundayLeap, ThursdayLeap, Time, TuesdayLeap, UTCLeap, WednesdayOrbital, Year
related to Folk traditions · 17
Leap year → According, Brigid, Britain, February, Felten, In, In Ireland, Ireland, Kildare, Norway, Queen Margaret, Saint Patrick, Scotland, Supposedly, The Maydes Metamorphosis, While, Women
related to Gregorian calendar · 13
Leap year → Adding, By, Each, Earth's, February, Gregorian, However, In, Julian, Over, The Gregorian, This, Whereas
related to Birthdays · 11
Leap year → February, For, Frederic, Gilbert, In, March, Penzance, Sullivan's, Technically, The Pirates, This
related to External links · 11
Leap year → April, Archived, Brady Haran, Famous LeapersLeap Day Campaign, Galileo DayHistory Behind Leap, Gray, May, Meghan, Numberphile, Retrieved, Year National Geographic Society
related to Bengali, Indian and Thai calendars · 10
Leap year → AD, Bangladesh, BE, Buddhist Era, February, Gregorian, Indian National Calendar, The Revised Bengali Calendar, The Thai, This
related to Leap day in the Julian and Gregorian calendars · 9
Leap year → Earth, February, First, Julian, Second, Since, Sun, The, This

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

year leap calendar day days years february month march gregorian 29 julian months one every extra solar 365 first rule

Leap year relationships Subject–Predicate–Object triples

TTTA extracted 190 structured relationships around Leap year. Examples in this analysis include Leap year → related to Bengali, Indian and Thai calendars → The Revised Bengali Calendar and Leap year → related to Bengali, Indian and Thai calendars → Bangladesh. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Leap yearrelated to Bengali, Indian and Thai calendarsThe Revised Bengali Calendar0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsBangladesh0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsIndian National Calendar0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsFebruary0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsGregorian0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsThis0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsThe Thai0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsBuddhist Era0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsBE0.60section
Leap yearrelated to Bengali, Indian and Thai calendarsAD0.60section
Leap yearrelated to BirthdaysFebruary0.60section
Leap yearrelated to BirthdaysIn0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Leap year bring nearby vocabulary together. In this analysis, examples include Year, Day and Years. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Leap year
    • Year
    • Day
    • Years
    • February
    • Calendar
    • Days
    • Month
    • Every
    • One
    • Julian
    • Gregorian
    • Extra
  • leap year
    • Year
    • Day
    • Years
    • February
    • Calendar
    • Days
    • Month
    • One
    • Every
    • Gregorian
    • Julian
    • Extra
  • calendar year
    • Year
    • Gregorian
    • Leap
    • Days
    • Julian
    • Day
    • February
    • Years
    • Month
    • Months
    • One
    • Solar
  • common year
    • Years
    • February
    • One
    • Gregorian
    • Date
    • Since
    • Two
    • Extra
    • Every
    • Intercalary
    • March
    • Year
  • astronomical year
    • Time
    • Years
    • One
    • Gregorian
    • Extra
    • Every
    • Lunar
    • Months
    • Following
    • March
    • Rule
    • Calendars
  • julian calendar
    • Year
    • Gregorian
    • Leap
    • Days
    • Julian
    • Day
    • Extra
    • February
    • Years
    • Month
    • Months
    • One
  • gregorian calendar
    • Year
    • Gregorian
    • Leap
    • Days
    • Julian
    • Day
    • February
    • Years
    • Month
    • Months
    • One
    • Solar
  • lunar hijri calendar
    • Year
    • Gregorian
    • Leap
    • Days
    • Julian
    • Day
    • February
    • Years
    • Month
    • Months
    • One
    • Solar

Connections between topic areas Semantic bridges

For Leap year, one of the stronger structural bridges in this analysis connects Leap year with Leap day in the Julian and Gregorian calendars. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Leap yearLeap day in the Julian and Gregorian calendars · splits 81 ⟂ 43
Leap yearOverview · splits 102 ⟂ 22
Leap yearHebrew calendar · splits 109 ⟂ 15
Leap yearIslamic calendars · splits 115 ⟂ 9
Leap yearJulian calendar · splits 116 ⟂ 8
Leap yearGregorian calendar · splits 117 ⟂ 7
Leap yearBengali, Indian and Thai calendars · splits 118 ⟂ 6
Leap yearChinese calendar · splits 118 ⟂ 6
Leap yearCoptic and Ethiopian calendars · splits 121 ⟂ 3

Map overview Semantic statistics

Leap year

Nodes124
Edges123
Triples190
Avg. degree1.98
Density0.016129
Components1

Source & methodology

TTTA analyzes the structure around Leap year to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Standards, Leap day in the Julian and Gregorian calendars & Hebrew calendar, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Leap year · EN edition · Analysis: TopicsToTalkAbout

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