University of Regina (Canada)
University of Regina: Math Central: Map of First Nations Peoples Pre Contact Culture Areas
A color coded map of North America which contains the regions inhabited by different aboriginal nations.
Other
Ancient Greek Number Codes
Credited to the Cornell University Greek Epigraphy Project, the content on this page explains (and illustrates through a chart) the Greek use of Alpha characters for numbers.
Other
Who's Who in Shakespeare's History Plays
Here is a color-coded family tree to help you understand how the historical characters in Shakespeare's series of history plays are connected. As a bonus, you also get a brief synopsis of each of the plays.
Other
Insightful Interaction: 200 Years of Immigration to the u.s.
A colorful, interactive graph of immigration to the U.S. from 1820-2013. Graph lists up to 19 countries coded with color to create an interesting visual.
Smithsonian Institution
National Postal Museum: Famous Americans: Samuel Morse
Learn brief information concerning Samuel Morse, inventor of the telegraph, who was featured on the two cent postage stamp.