Historical boundaries of the United States of America, 1629-2000

Historical and Contemporary Boundaries of the United States of
America
c(person("Lincoln", "Mullen",
email = "lincoln@lincolnmullen.com",
role = c("aut", "cre")),
person("Dr. William M. Scholl Center for American History and Culture,
The Newberry Library", role = "cph"),
person("United States Census Bureau", role = "cph"))
The boundaries for geographical units in the United States of
America contained in this package include state, county, congressional
district, and zip code tabulation area. Contemporary boundaries are provided
by the U.S. Census Bureau (public domain). Historical boundaries for the
years from 1629 to 2000 are provided form the Newberry Library's 'Atlas of
Historical County Boundaries' (licensed CC BY-NC-SA). Additional high
resolution data is provided in the 'USAboundariesData' package;
this package provides an interface to access that data.
USAboundariesData (>= 0.2.0), knitr, testthat (>= 0.9.1)
Lincoln Mullen [aut, cre],
Dr. William M. Scholl Center for American History and Culture, The
Newberry Library [cph],
United States Census Bureau [cph]

c(person("Lincoln", "Mullen",
email = "lincoln@lincolnmullen.com",
role = c("aut", "cre")),
person("Jordan", "Bratt",
email = "jfbratt@gmail.com",
role = c("aut")),
person("United States Census Bureau", role = "cph"))
The boundaries for geographical units in the United States of
America contained in this package include state, county, congressional
district, and zip code tabulation area. Contemporary boundaries are provided
by the U.S. Census Bureau (public domain). Historical boundaries for the
years from 1629 to 2000 are provided form the Newberry Library's 'Atlas of
Historical County Boundaries' (licensed CC BY-NC-SA). Additional  data is
provided in the 'USAboundariesData' package; this package provides an
interface to access that data.
sf (>= 0.5.1), testthat (>= 0.9.1), USAboundariesData (>=
0.3.0), covr
Lincoln Mullen [aut, cre],
Jordan Bratt [aut],
United States Census Bureau [cph]