[NOTE: Not applicable to users of HistoryGeo.com for Libraries]To add a Custom Marker, find a place on a map that you wish to share information about. Let's say we know something about one of the buildings in this map image:Click on the "Add Custom Marker"…

Custom Markers are a way for you to annotate your maps with additional information by marking significant spots. Here's what they look like on a map: Double-click on one with your left mouse-button, and you will be shown that Custom Marker's full information:…

[NOTE: Not applicable to users of HistoryGeo.com for Libraries]Whenever you double-click on a Custom Marker with the left mouse button, the Marker Details window will popup. If it's a marker that was submitted from your account, then you will see three buttons…

[NOTE: Not applicable to users of HistoryGeo.com for Libraries]When creating or editing a Custom Marker, you have the option of filling in date-related information that expounds upon the information in the marker's description.To enter a date or date range…

[NOTE: Not applicable to users of HistoryGeo.com for Libraries]When adding or editing a Custom Marker, you have the ability to attach up to 10 web links to further extend a marker's content by linking to additional information and/or sources on the web. To…

[NOTE: Not applicable to users of HistoryGeo.com for Libraries]When adding or editing a Custom Marker, you have the ability to attach up to 10 snapshots to link the marker with spots on other maps that are relevant to the marker's contents. To attach a snapshot,…

[NOTE: Not applicable to users of HistoryGeo.com for Libraries]When adding or editing a Custom Marker, you have the ability to attach images to illustrate something about the marker and its contents. To attach an image, you must be in the process of creating…