I would like to see this with the faded background being black, or alternatively...

hammock on Oct 24, 2012 | parent | context | favorite | on: US Territorial Expansion: 200 years mapped with d3...

I would like to see this with the faded background being black, or alternatively the entire continent of North America, as opposed to an outline of the US today. Sort of gives it away and distracts from viewing and appreciating the expansion.