Posts : 8735 Join date : 2013-01-16 Age : 80 Location : California
Subject: Re: Why the World Is Better Than You Think in 10 Powerful Charts Sun Jul 31, 2016 3:05 pm
Some of the data are revealing, but some are ludicrous: comparisons of modern data with estimates of several hundred years ago are sometimes interesting, but meaningless.
Why the World Is Better Than You Think in 10 Powerful Charts
Home 
