Where did the word ta-da come from?

Answer 1

Sadly, I came here to find if I guessed the answer correctly. I suspect it is a shortened version of a trumpeted fanfare for an English monarch in medieval times.

Ta ta ta ta ta dah!

It does match up with the same sentiment as "here is something great"

Answer 2

The word "ta-da" is an onomatopoeic term meant to represent the sound of a fanfare or flourish, often used to signify something appearing or happening. It is believed to have originated from the 1920s as a theatrical exclamation to denote a moment of revelation or surprise.