diff --git a/man/appearances.Rd b/man/appearances.Rd
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+++ b/man/appearances.Rd
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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/appearances.R
+\docType{data}
+\name{appearances}
+\alias{appearances}
+\title{Appearances}
+\format{
+A data frame with 22 variables:
+\describe{
+\item{key_id}{\code{integer}. The unique ID number for the observation.}
+\item{season_id}{\code{text}. The unique ID number for the season.
+References \code{season_id} in the \code{seasons} dataset.}
+\item{season}{\code{integer}. The year that the season started.}
+\item{tier}{\code{integer}. The tier in English football. The possible
+values are \code{1} through \code{4}.}
+\item{division}{\code{test}. The division in English football. For the
+current league structure, the possible values are \code{Premier League},
+\code{Championship}, \code{League One}, and \code{League Two}. For previous
+league structures, the possible values are \code{First Division},
+\code{Second Division}, \code{Third Division}, and \code{Fourth Division}.}
+\item{subdivision}{\code{test}. The subdivision in English football. In the
+third tier, from the 1921-22 season through the 1957-58 season, there were
+North and South subdivisions. The possible values are \code{North},
+\code{South}, and \code{None}.}
+\item{match_id}{\code{text}. The unique ID number for the match. References
+\code{match_id} in the \code{matches} dataset.}
+\item{match_name}{\code{text}. The name of the match.}
+\item{team_id}{\code{text}. The unique ID number for the team. References
+\code{team_id} in the \code{teams} dataset.}
+\item{team_name}{\code{text}. The name of the team.}
+\item{opponent_id}{\code{text}. The unique ID number for the team's
+opponent. References \code{team_id} in the \code{teams} dataset.}
+\item{opponent_name}{\code{text}. The name of the team's opponent.}
+\item{home_team}{\code{boolean}. Whether the team was the home team. Coded
+\code{1} if the team was the home team and \code{0} otherwise.}
+\item{away_team}{\code{boolean}. Whether the team was the away team. Coded
+\code{1} if the team was the away team and \code{0} otherwise.}
+\item{goals_for}{\code{integer}. The number of goals scored by the team.}
+\item{goals_against}{\code{integer}. The number of goals scored against the
+team.}
+\item{goal_difference}{\code{integer}. The team's goal difference.}
+\item{result}{\code{enum}. The result of the match. The possible values are
+\code{home team win}, \code{away team win}, and \code{draw}.}
+\item{win}{\code{boolean}. Whether the team won the match. Coded \code{1}
+if the team won the match and \code{0} otherwise.}
+\item{lose}{\code{boolean}. Whether the team lost the match. Coded \code{1}
+if the team lost the match and \code{0} otherwise.}
+\item{draw}{\code{boolean}. Whether the match ended in a draw. Coded
+\code{1} of the match ended in a draw and \code{0} otherwise.}
+\item{points}{\code{integer}. The number of points the team earned from the
+match. A team earns \code{0} points for a loss and \code{1} point for a
+draw. From the 1888-89 season through the 1980-81 season, teams earned
+\code{2} points for a win. Starting with the 1981-82 season, teams have
+earned \code{3} points for a win.}
+}
+}
+\usage{
+appearances
+}
+\description{
+This dataset records all appearances. There is one observation per team per
+match per season. It indicates whether the team is the home team or the
+away team, the number of goals for and against, the goal difference,
+whether the team wins, loses, or draws, and how many points the team earned
+from the match.
+}
+\keyword{datasets}
diff --git a/man/matches.Rd b/man/matches.Rd
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--- /dev/null
+++ b/man/matches.Rd
@@ -0,0 +1,67 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/matches.R
+\docType{data}
+\name{matches}
+\alias{matches}
+\title{Matches}
+\format{
+A data frame with 21 variables:
+\describe{
+\item{key_id}{\code{integer}. The unique ID number for the observation.}
+\item{season_id}{\code{text}. The unique ID number for the season.
+References \code{season_id} in the \code{seasons} dataset.}
+\item{season}{\code{integer}. The year that the season started.}
+\item{tier}{\code{integer}. The tier in English football. The possible
+values are \code{1} through \code{4}.}
+\item{division}{\code{test}. The division in English football. For the
+current league structure, the possible values are \code{Premier League},
+\code{Championship}, \code{League One}, and \code{League Two}. For previous
+league structures, the possible values are \code{First Division},
+\code{Second Division}, \code{Third Division}, and \code{Fourth Division}.}
+\item{subdivision}{\code{test}. The subdivision in English football. In the
+third tier, from the 1921-22 season through the 1957-58 season, there were
+North and South subdivisions. The possible values are \code{North},
+\code{South}, and \code{None}.}
+\item{match_id}{\code{text}. The unique ID number for the match. Has the
+format \code{M-####-###}, where the first number is the season and second
+number is a within-season counter that is assigned with the data sorted by
+the name of the home team, then by the name of the away team.}
+\item{match_name}{\code{text}. The name of the match.}
+\item{home_team_id}{\code{text}. The unique ID number for the home team.
+References \code{team_id} in the \code{teams} dataset.}
+\item{home_team_name}{\code{text}. The name of the home team. See the
+\code{teams} dataset.}
+\item{away_team_id}{\code{text}. The unique ID number for the away team.
+References \code{team_id} in the \code{teams} dataset.}
+\item{away_team_name}{\code{text}. The name of the away team. See the
+\code{teams} dataset.}
+\item{score}{\code{text}. The score of the match in the format \code{#-#},
+where the first number is the score of the home team and the second number
+is the score of the away team.}
+\item{home_team_score}{\code{integer}. The score of the home team.}
+\item{away_team_score}{\code{integer}. The score of the away team.}
+\item{home_team_score_margin}{\code{integer}. The score margin for the home
+team.}
+\item{away_team_score_margin}{\code{integer}. The score margin for the away
+team.}
+\item{result}{\code{enum}. The result of the match. The possible values are
+\code{home team win}, \code{away team win}, and \code{draw}.}
+\item{home_team_win}{\code{boolean}. Whether the home team won the match.
+Coded \code{1} if the home team won the match and \code{0} otherwise.}
+\item{away_team_win}{\code{boolean}. Whether the home team won the match.
+Coded \code{1} if the home team won the match and \code{0} otherwise.}
+\item{draw}{\code{boolean}. Whether the match ended in a draw. Coded
+\code{1} of the match ended in a draw and \code{0} otherwise.}
+}
+}
+\usage{
+matches
+}
+\description{
+This dataset records all matches that have ever been played in the English
+Football League and the Premier League (1888-2022). There is one
+observation per match per season. It indicates the season, tier, division,
+and subdivision for the match, the score, the score margin for each team,
+and the result of the match (home team win, away team win, draw).
+}
+\keyword{datasets}
diff --git a/man/seasons.Rd b/man/seasons.Rd
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index 0000000..23b4446
--- /dev/null
+++ b/man/seasons.Rd
@@ -0,0 +1,43 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/seasons.R
+\docType{data}
+\name{seasons}
+\alias{seasons}
+\title{Seasons}
+\format{
+A data frame with 8 variables:
+\describe{
+\item{key_id}{\code{integer}. The unique ID number for the observation.}
+\item{season_id}{\code{text}. The unique ID number for the season. Has the
+format \code{S-####-#}, where the first number is the year in which the
+season started, the second number is the tier. In the third tier, from the
+1921-22 season through the 1957-58 season, there were North and South
+subdivisions. These are indicated by a \code{-N} or \code{-S} suffix.}
+\item{season}{\code{integer}. The year that the season started.}
+\item{tier}{\code{integer}. The tier in English football. The possible
+values are \code{1} through \code{4}.}
+\item{division}{\code{text}. The division in English football. For the
+current league structure, the possible values are \code{Premier League},
+\code{Championship}, \code{League One}, and \code{League Two}. For previous
+league structures, the possible values are \code{First Division},
+\code{Second Division}, \code{Third Division}, and \code{Fourth Division}.}
+\item{subdivision}{\code{text}. The subdivision in English football. In the
+third tier, from the 1921-22 season through the 1957-58 season, there were
+North and South subdivisions. The possible values are \code{North},
+\code{South}, and \code{None}.}
+\item{winner}{\code{text}. The name of the team that won the league.}
+\item{count_teams}{\code{integer}. The number of teams in the league (that
+actually played a match).}
+}
+}
+\usage{
+seasons
+}
+\description{
+This dataset records all seasons in the English Football League and the
+Premier League from inaugural season of the Football League (1888-89)
+through the most recent season (2021-22). There is one observation per
+season. It indicates the tier, division, subdivision, winner, and number of
+teams for each season.
+}
+\keyword{datasets}
diff --git a/man/standings.Rd b/man/standings.Rd
new file mode 100644
index 0000000..9d698e8
--- /dev/null
+++ b/man/standings.Rd
@@ -0,0 +1,55 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/standings.R
+\docType{data}
+\name{standings}
+\alias{standings}
+\title{Standings}
+\format{
+A data frame with 18 variables:
+\describe{
+\item{key_id}{\code{integer}. The unique ID number for the observation.}
+\item{season_id}{\code{text}. The unique ID number for the season.
+References \code{season_id} in the \code{seasons} dataset.}
+\item{season}{\code{integer}. The year that the season started.}
+\item{tier}{\code{integer}. The tier in English football. The possible
+values are \code{1} through \code{4}.}
+\item{division}{\code{test}. The division in English football. For the
+current league structure, the possible values are \code{Premier League},
+\code{Championship}, \code{League One}, and \code{League Two}. For previous
+league structures, the possible values are \code{First Division},
+\code{Second Division}, \code{Third Division}, and \code{Fourth Division}.}
+\item{subdivision}{\code{test}. The subdivision in English football. In the
+third tier, from the 1921-22 season through the 1957-58 season, there were
+North and South subdivisions. The possible values are \code{North},
+\code{South}, and \code{None}.}
+\item{position}{\code{integer}. The team's final position in the league.}
+\item{team_id}{\code{text}. The unique ID number for the team. References
+\code{team_id} in the \code{teams} dataset.}
+\item{team_name}{\code{text}. The name of the team.}
+\item{played}{\code{integer}. The number of matches that the team played.}
+\item{wins}{\code{integer}. The number of matches that the team won.}
+\item{draws}{\code{integer}. The number of matches that the team drew.}
+\item{losses}{\code{integer}. The number of matches that the team lost.}
+\item{goals_for}{\code{integer}. The number of goals scored by the team.}
+\item{goals_against}{\code{integer}. The number of goals scored against the
+team.}
+\item{goal_difference}{\code{integer}. The team's goal difference.}
+\item{points}{\code{integer}. The number of points that the team earned
+over the whole season (after any point adjustments).}
+\item{point_adjustment}{\code{integer}. The number of points that were
+deducted by the league due to violations of league rules or added by the
+league due to forfeits.}
+}
+}
+\usage{
+standings
+}
+\description{
+This dataset records all end-of-the-season standings. There is one
+observation per team per season. It indicates the final position of the
+team (accounting for tie-breakers), the name of the team, the number of
+matches played, the number of wins, the number of losses, the number of
+draws, the number of goals for, the number of goals against, the goal
+difference, and the total number of points earned.
+}
+\keyword{datasets}
diff --git a/man/teams.Rd b/man/teams.Rd
new file mode 100644
index 0000000..ba77af7
--- /dev/null
+++ b/man/teams.Rd
@@ -0,0 +1,42 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/teams.R
+\docType{data}
+\name{teams}
+\alias{teams}
+\title{Teams}
+\format{
+A data frame with 8 variables:
+\describe{
+\item{key_id}{\code{integer}. The unique ID number for the observation.}
+\item{team_id}{\code{text}. The unique ID number for the team. Has the
+format \code{T-###}, where the number is a counter that is assigned with
+the data sorted by the year of the team's first appearance in the Football
+League and then by the team's name.}
+\item{team_name}{\code{text}. The current name of the team.}
+\item{former_team_names}{\code{text}. The former names of the team,
+separated by a comma. Coded \code{None} for teams that have not changed
+their name.}
+\item{current}{\code{boolean}. Whether the team currently competes in the
+English Football League or the Premier League. Coded \code{1} if the team
+currently competes in these leagues and \code{0} otherwise.}
+\item{former}{\code{boolean}. Whether the team no longer competes in the
+English Football League or the Premier League (but still exists). Coded
+\code{1} if the team is no longer in these leagues and \code{0} otherwise.}
+\item{defunct}{\code{boolean}. Whether the team is defunct and no longer
+exists. Coded \code{1} if the team is defunct and \code{0} otherwise.}
+\item{first_appearance}{\code{integer}. The season that the team first
+competed in the Football League.}
+}
+}
+\usage{
+teams
+}
+\description{
+This dataset records all teams who have competed in the English Football
+League and the Premier League. There is one observation per team. It
+indicates the current name of the team, any former names of the team,
+whether the team is a former member of the Football League, whether the
+team is defunct, and the season that the team made their first appearance
+in the Football League.
+}
+\keyword{datasets}