What had a larger impact the sinking of the lusitania or the zimmerman note?

Even though both ww1 and ww2 were in many ways the same conflict with basically the same countries facing off against each other, the way each war started was significantly different. the question is how what were the differences on how they started

Mens rea is a latin term that means guilty mind and refers to the concept of whether or not a person intended to commit a crime. why is mens rea considered a key component in many types of crimes?

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia