3 ms·Then put Australia over Africa and be blown away by the true scale of that continent.by _AzMoo 6y agoThen put Australia over Africa and be blown away by the true scale of that continent.phaemon 6y agoThe contiguous United States are slightly smaller than the Sahara.puranjay 6y agoWow. That should lay rest to any questions about the slow progress of Sub-Saharan Africa in history. Crossing an expanse of desert that massive would be next to impossible before mechanized transport