“The world’s single largest online collection of historical maps launched earlier this week at Old Maps Online. By the end of the year, the site aims to have 60,000 maps available for public access.”
“Each historical map you click on is presented in a separate frame that you can enlarge, drawn from the contributing institution. A slider across the top allows you to dynamically change the offerings by moving from as early as 1000 CE up to 2010 (check Google Maps for anything more recent). A search box allows you to navigate by place name.”
Read the rest of the article that’s quoted above here.