Mapping out geology across the U.S. is surprisingly difficult, but the USGS has managed just that, and its map is more ...
The 510-year-old map is the first to name America. A world map in the form of a set of gores for a terrestrial globe, from 1507 by cartographer Martin Waldseemueller is displayed at Christie's auction ...
The wealthiest cities in the U.S. are almost seven times richer than the poorest regions, a disparity that has nearly doubled since 1960. Until now, however, little has been known about where the ...
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