WWI was caused by many things, among them was the assassination of Franz Ferdinand leading to the Austria-Hungary empire declaring war on Serbia which dragged most of Europe into the war due to alliances. The U.S. entered the war due to Germanys war tactics and the Zimmermann note.
Answer:
The War of 1812 changed the course of American history. Because America had managed to fight the world's greatest military power to a virtual standstill, it gained international respect. Furthermore, it instilled a greater sense of nationalism among its citizens.
While the War of 1812 had virtually no impact in England, it did assure the survival of the British colonies in Canada, and ultimately paved the way for the Canadian Confederation - the precursor to the nation of Canada.
I'm not sure if I remember correctly, but I believe it's C.) Passing laws that apply to actions taken before the law was passed.
