Google Earth: Now 120 Maps in the Rumsey Historical Map

"With the recent addition of over 100 new historical maps, there are now 120 maps in the Rumsey Historical Map layer in Gallery layer in Google Earth, and these maps can now be seen in a new layer in Google Maps. The original 16 historical maps, launched in November of 2006, have been augmented by adding many more maps of cities, regions, countries, continents, and even globes"(Link)