When was the Origins of NTY?

The exact date of origin is still unknown, but many of the users claim that it is first traced in the early 1990s and the 2000s. When mobile devices and the internet were yet to be established. In that era, many slang terms were introduced and also used today such as WBU, WSP, etc. In the term NTY, "thank you" was first used in the 12th century because it is the generic term that is said by everyone to express gratitude towards someone's help.