My Words of the 11th Century

They discovered of me
What I am about to say,
"In an ancient cave
Of the eleventh century
My words are found,
What I say today,
The only words heard
Are those words I await
To speak to say
What it is in sound I dare delay:
"I yelled so loud they heard me
In late 932 A. D.!"
Was written upon walls
Or so says me!"
I said I said
Said me!