This graph shows the change in number of people in the world living on less than one dollar per day for the last 36 years.

A dollar a day is the United Nations measure of poverty.  I don’t know if there is a correlation but the decline coincides with the collapse of statist socialism and communism and the growth of free market economies especially in India and China.  It’s probably just a coincidence.  But it is definitely something for everyone alive today to be proud of.  Most of the remaining people in poverty live in Africa.  What can we do about it?