What are some examples of metaphors and allusions in "The Legend of Sleepy Hollow"?

There are
many examples of allusions found in the short story "." Here are a few
examples:

• References to the American Revolutionary War, including
  the battle of White Plains.
• Cotton Mather's History of New
  England Witchcraft figures prominently.
• The Dutch old country is
  mentioned; an example is the town of Saardam.
• Irving refers to the Russian
  "Don Cossacks."
• There is a reference to "the cap of
  Mercury."
• There is a comparison to the "knight-errant" of
  medieval times.
• The patron of dance, St. Vitus, is referenced.


• The British spy, Major Andre, who was hanged in the area, is mentioned several
  times.