Database topics
Geography; Government Information: State and Local
"The Atlas presents in maps and text complete data about the creation and all subsequent changes (dated to the day) in the size, shape, and location of every county in the fifty United States and the District of Columbia. It also includes non-county areas, unsuccessful authorizations for new counties, changes in county names and organization, and the temporary attachments of non-county areas and unorganized counties to fully functioning counties. The principal sources for these data are the most authoritative available: the session laws of the colonies, territories, and states that created and changed the counties"--About the project.

2. SimplyMap [2005]

Database topics
Geography; Government Information: United States; Government Information: State and Local
1 online resource
SimplyMap is a web-based mapping application that lets users quickly create professional-quality thematic maps and reports using demographic, business, and marketing data for the United States.
Historical census -- Life stages -- MRI consumer survey Limited to 5 concurrent users.