The man speaks

Genesis 2:23 - The man said,
"This is now bone of my bones
and flesh of my flesh;
she shall be called 'woman,'
for she was taken out of man."

I wonder what language Adam (and everyone else before the Flood) spoke. Was it a language still spoken today? Was it Hebrew?

Over the (hundreds of) years, did dialects and accents develop? Drawls, twangs, and such? Did the ancient equivalent of ebonics show itself?

Probably.