The color-coding counts the number of records for people who lived in the state or county at one time, with the key to the colors showing under the map.
Each state or country map has each of the following options:
Whose Branches: (If you are registered and logged in) Choose to see all data on the site, or only your own data, or only data from everyone else but you.
Borders: To help the color shading and borders be easier to see, there is the option to change the border color between black, dark gray, light gray, and none.
Century: To see people from only a certain timeframe, choose a year from the Century list. To see a progression over time, choose several in succession -- like 1600's, then 1700's, then 1800's, etc.
Surname: To see only people with a certain surname. For wild card searches, type the beginning of a name followed by *. For example, Gurg* finds any name beginning with "Gurg", but with any of the various endings.
For the specific locations pages, each person may customize the choices and order of the columns that appear here. See more information.