So basically bud they declared war because Germany had sunk the Lusitania and was therefore trying to abandon the policy against unrestricted submarine warfare
In the United States, it was mostly a rise in immigration that led to the call for the prohibition of alcohol, since many people believed that it was making people violent and unappealing. Women were at the forefront of this movement, which succeeded in prohibiting alcohol but failed at actually enforcing this ban, since people continued to drink anyway.
Answer: Until this century, relative dating was the only technique for identifying the age of a truly ancient object. By examining the object's relation to layers of deposits in the area, and by comparing the object to others found at the site, archaeologists can estimate when the object arrived at the site. Hope this helps!
