Did Christianity get the Lord's Super from a Mithraic religion? Any other borrowings?

Hi LamarkNewAge,Could I ask for a rewrite consisting primarily of your own words? Brief supporting quotes for your arguments are preferred, along with links to the sources if available online.

From the Forum Guidelines:

3. When introducing a new topic, please keep the message narrowly focused. Do not include more than a few points.
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6. Avoid lengthy cut-n-pastes. Introduce the point in your own words and provide a link to your source as a reference. If your source is not on-line you may contact the Site Administrator to have it made available on-line.

A good thread proposal introduces the topic by providing some description or information, then making a few points or arguments, and it shouldn't be overly long. Only 641 of the words in your proposal were your own. The other 4272 words were quotes. Reverse the ratio and keep the total below a thousand words.