The voyages of historical European explorers in the early modern era between 1500 and 1800 resulted in short and long term consequences in both the Eastern and Western hemispheres. The diffusion of plants, food crops, human populations, disease pathogens, and animals changed the world's biolog...

Africa has always had many problems with diseases and as of Tuesday Southern Africa faces the world's worst humanitarian crisis because of AIDS, hunger, and a weakened ability to govern. Southern Africa is in the middle of the AIDS virus. In the small kingdom of Swaziland there are thirty-eight...

Slavery in the United States began in 1619 when slaves were imported from Africa to Jamestown, Virginia. The reason for importing black slaves from Africa was because, in some places, having Indians as slaves was illegal, but mostly because it was more difficult for the African slaves torun away. On...

Extreme global poverty is a problem that affects a large percentage of the world's population and will continue to spread until serious action is taken against it by the wealthier nations. However, the amount of obligation, if any, that countries feel they have to deal with such a problem is ...