Engineers, who were the leaders of the Underground Railroad, helped slaves who were running away by providing them with food, shelter, and sometimes jobs. They hid the slaves from people who were trying to catch them and return them to slavery.
The GDP per Capita, in Nigeria, when adjusted by Purchasing Power Parity is equivalent to 32 percent of the world's average.
It is unsurprising that Nigeria, a comparatively wealthy African country, continues to hold firmly to her position in the list of Low Human Development countries (145 out of 172 in 2011, but 142 out of 172 in 2010, so Nigeria is actually falling down the table) in the UNDPâs Human Development Index (HDI) .