The Night's Plutonian Shore

[bboyminn]

'One upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious website of forgotten lore, ...'

I'm sure we are all familiar with Edgar Allan Poe's famous
poem "The Raven". I've been studying this recently with the
hope that I can know it well enough to be able to recite it
out loud with some level of proficiency.

As I was recently reading it, something odd struck me.

After the Raven enters the room -

"Though they crest be shorn and shaven thou," I said
"are surely no craven. Ghastly, grim and ancient raven, 
wandering form the nighly shore. Tell me what the lordly
name is on the Night's Plutonian shore."

The mystery is "...Night's Plutonian shore...". Now I 
know that is something of a reference to hell, or to the
edge or shores of hell, but why is it capitalize the way 
it is? 

Why not ... night's Plutonian Shore...?

Why not ... night's Plutonian shore...?

In all instances in the poem, this item is always referenced
as ....Night's Plutonian shore....

Just curious if anyone has ever given this any thought.

What is so special about Night that it is capitalized, 
and what is so insignificant about shore that it is not? 

A few other references that I've tacked down while pondering
this poem.

Nepenthe - is apparently a reference to Homer's Odyssey. It
is a drink the relieves sorrow.

"Quaff, o quaff this kind nepenthe, and forget this lost
Lenore!"

Balm of Gilead - I knew this one instinctively. He is asking
if there is any spiritual peace from the sorrow of his lost
Lenore, and of course the Raven replies - Nevermore. Impling
to the Sad main character that there is no relief from the
heartache.

"Tell this soul with sorrow laden, if, within the distant
Aidenn, I shall clasp a sainted maden, whom the angels 
named Lenore - "

Aidenn is paradise or Eden. I think in the context, it means
Heaven. When I get to Heaven will I be able to hold Lenore
again, and of course, the Raven says - Nevermore.

I suspect, in their day, many of these references we commonly
known. But today, in a world of such great wit and deep 
thinking as "C U L8R" and similar, few would have a clue.

Not real important on the "Night's Plutonian shore", just
wondering if anyone could speculate or knew of an explanation
of why it is capitalized as it is?

Steve/bboyminn