I am looking for solutions for embedding geolocated historic maps in an omeka site. We have used the Geolocation plugin for providing information about where certain items are on a current map of New York, but for several reasons an additional historic map that can be linked to items would be an excellent edition to the site: 1. the street layout of lower Manhattan has changed since the period which the Omeka archive covers, and 2. it would be useful for a visitor to the site to be able to see where things were in relation to each other.
I have done some experimenting with using MapLib map in an iframe on a simple page, but haven't found that it's a satisfactory solution for a number of reasons, not least because the site seems fairly unstable. It also doesn't play that nicely with Omeka.
Does anyone know of other possibilities?