More Interesting Facts:

In 1750 there were about 800 million people in the world. In 1850 there were a billion more, and by 1950, another billion. Then it took just 50 years to double to 6 billion.
Half the world’s population earns about 5% of the world’s wealth.
There are more than 600 million telephone lines, yet almost half the world’s population has never made a phone call on a land line.
However, more than half the world’s population has made a cell phone call. There are more than 2 billion cell phones in use. More personal telephone calls are made on Mother’s Day in the USA than on any other day in any other country. One in ten people in the world live on an island.
The opposite sides of a dice cube always add up to seven. In the US, murder is committed most frequently in August and least frequently in February. In 1870 there were more Irish living in London than in Dublin. In 1870 there also were more Catholics living in London than in Rome.
The chance of being born on Leap Day is about 684 out of a million, or 1 in 1461. Less than 5 million people have their birthday on Leap Day.