The sinking or Lusitania on 7 May 1915 was a significant event during WW1. It was a passenger liner sunk by German submarine during World War 1. It lead to America declaring war on Germany.
You must be talking about the assassination of Archduke Franz Ferdinand of Austria. This was an event which triggered the start of WWI.
The significant advantage possessed by the Union at the beginning of the Civil War is a larger free population. They also have created big factories that can produce military supplies and ammunition. They have access to railways. This made transportation of men and supplies easier.
you can learn about who your ansesters were which shows your roots like if they were a indian than you have a little indian in you!
(i dont know what your learning about but just change Indian to whatever your learning in history)
Answer:
in other for them to gain they produce their oil
