What are the origins of pig latin, and how do you speak it?

Since no one else has explained it, I'll try:

In Pig Latin, the first letter or sound of the word is moved to the end of the word and is followed by "ay". I guess it gives it a Latin-esque sound, but I've never really thought about it.

"Pig Latin" would become "Ig-pay Atin-lay"

I think it actually started as a rebellious response to the Roman empire by early, pre-Romance languages. People who did not speak proper latin were called "vulgar" - they were usually the uneducated or country people. Arrogant Romans would call the distortion of proper latin by the native people "vulgar latin," so the term "pig latin" was created by the vulgars as a satirical response. At least this is what I learned in French history...

so far everyone has been writing pig english.
doesnt anyone know any real latin?

My whole family speaks Pig Latin and in Jr. High I actually did a a report in english class about the origins of it. After speaking to many people I found out that Pig Latin came about during the flower child period. Hippies created this alternet way of speaking english so that they could speak freely to eachother when they got arrested. The actual name came about because the "pigs" did not understand them, thus Pig Latin. As to the response left before mine it is half way true, you take the frist letter(s) up to the first vowel move it/them to the end and add ay. However there are a few exceptions to this if the frist letter is a vowel you take that letters off up to the second vowel and add an ay then remove take the letters after it and add an ay. If there is no second vowel just add ay to the end of the word. Also if the word is only a vowel just add an ay. Examples: applay eay (apple), anday (and), Iay (I).
If you have a long word you may have to split it up the best way to explain this is just to give you an example. Example: Ihay erbay atenay (Hibernate). I hope this answered your question and I am happy to share my useless knowledge with you.

In Britain this term more often applies to the type of backslang used by the criminals of 19th century London and used as a playground game today, which was based on turning words backwards), or Butcher's Backslang which was common in English butchers' shops at least until World War II. Prior to this, Benjamin Franklin was known to use a version of Pig Latin in some publications.
-WIK

Pig latin was made up to be entertaining, and make fun of latin.
You speak it by removing all the consonants at the beginning of the word until the first vowel and adding them to the end followed by "ay"

example: Ellohay, Imay eakingspay igpay atinlay. Oday eakspay itay? means Hello, Im speaking pig latin. Do you speak it?

Pig latin is not a real language. Learn actually latin!

Pig latin is a made up language, for it is a perversion of the original Latin.

some boar came up with the idea for pig latin. and not to well thank you

I would like to know when it was first used and who invented it! When my mom was in college, from 1937-1941, pig latin as we know it (with all the "ay"s) was all the rage. Did it originate around that time, or maybe in the '20s, or earlier? The term "pig" appended to the name of a language is probably as old as time. It's human nature (unfortunately) to make fun of a language that you don't understand - it all sounds like made-up noise to you. And children and young people have always looked for ways to communicate under the adult radar.