R/ussher.R

In ussherR: Ussher Data Set Drawn from 1658 Chronology

#' Cleaned and tidied data drawn from Archbishop James Ussher's chronology of ancient history known popularly as The Annals of the World (1658).
#'
#' "ussher" file - Chronological textual historic events are classified by index, year, epoch (or one of the 7 ancient "Ages of the World", Biblical source book if referenced (rarely), as well as alternate dating mechanisms, such as "Anno Mundi" (age of the world) or Julian Period. Additional file "usshfull" includes variables that may be of further interest to historians, such as Southern Kingdom and Northern Kingdom discrepant dates, and the original amalgamated Dating mechanic used by Ussher in the original text. The raw data can also be called using "usshraw"
#'
#' @format A tibble with 5011 rows and 8 variables:
#' \describe{
#'   \item{Index}{dbl The indexed number of Ussher's paragraphs, in ascending chronological order, added by later editors.}
#'   \item{EventTxt}{chr Ussher's original historical paragraph, cleaned for text processing}
#'   \item{YearBCAD}{dbl Harmonized year BC or AD proposed by Ussher. BC is a negative number. AD is positive.}
#'   \item{Epoch}{chr denoting which of the 7 ancient "Ages of the World" the event falls into}
#'   \item{BibBk1}{chr a Biblical Book reference, if one is included in the paragraph}
#'   \item{AnnoMund}{dbl denoting "Anno Mundus" or age of the world from Creation, or 4004 BC}
#'   \item{Season}{chr denoting which quarter of the year - Autumn, Winter, Spring or Summer that event was calculated to occur}
#'   \item{JulPer}{dbl denoting Julian Period date. Julian Period was backdated to creation by Ussher, following its adoption by Caesar in 43 BC}
#' }
#' @source \url{https://archive.org/stream/AnnalsOfTheWorld/Annals_djvu.txt}
#' @examples
#' summary(ussher)
"ussher"