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Leap Year Intercalary Data
Data Science and Analytics
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About
February 29, often termed a leap day or intercalary date, is added periodically to the Julian and Gregorian calendars to maintain alignment with the Earth's revolutions around the Sun. Derived from the Wikipedia article on this specific date, the data aggregates significant historical occurrences, births, and deaths associated with this quadrennial event. It allows for the examination of cohorts born on this day and the exploration of patterns regarding which years are represented or underrepresented in historical records.
Columns
events.csv
- year: Integer representing the year the event took place.
- event: Character string providing a short, free-text description of the historical occurrence.
births.csv
- year_birth: Integer indicating the year of birth.
- person: Character string containing the name of the individual.
- description: Character string with a short description of the person (e.g., "American baseball player and manager").
- year_death: Integer indicating the year of death (contains missing values for individuals still alive or where data is unrecorded).
deaths.csv
- year_death: Integer indicating the year of death.
- person: Character string containing the name of the deceased.
- description: Character string with a short description of the person.
Distribution
The data is structured in a tabular format across three Comma-Separated Values (CSV) files:
events.csv, births.csv, and deaths.csv. The births.csv file is approximately 6.79 kB in size and contains 121 valid records. Statistical analysis of the birth years shows a range from 1468 to 2004, with a mean birth year of approximately 1920. The description field in the births file has 111 unique values, with "American baseball player and manager" being the most common non-unique description.Usage
- Historical Analysis: Examining the frequency and type of significant events occurring on leap days throughout history.
- Demographic Studies: Analysing the lifespan and professions of individuals born on February 29.
- Calendar and Astronomy: visualising the distribution of leap day records over centuries to understand calendar anomalies.
- Data Visualisation: Creating timelines or charts to highlight represented cohorts versus underrepresented periods.
Coverage
- Time Range: The birth records span from the year 1468 to 2004.
- Geographic Scope: Global, as recorded by English Wikipedia.
- Demographics: Includes a diverse range of individuals, such as actors, baseball players, and religious figures (e.g., Pope Paul III), who possess a Wikipedia entry and a recorded event, birth, or death on February 29.
License
CC0: Public Domain
Who Can Use It
- Historians: For tracking specific intercalary events.
- Data Analysts: For practising data cleaning and exploratory analysis on dates.
- Statisticians: For investigating probability distributions of births on rare dates.
- Educators: As a teaching resource for understanding calendar systems and data variability.
Dataset Name Suggestions
- Wikipedia Leap Day Historical Records
- February 29th Births Deaths and Events
- Leap Year Intercalary Data
- Global Leap Day Archives
Attributes
Original Data Source: Leap Year Intercalary Data
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