The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. When Russia began to mobilize due to its alliance with Serbia, Germany declared war on Russia.
When Africans were brought to America to be sold as slaves, they brought food from their home continent with them. These foods became incorporated in what would become known as Southern food.
