Is there a way to unset all Emacs key bindings?

[Parke]

Hi,

I have made a list of the key bindings I want.  I want to unset all
other key bindings.

(Or, alternatively, I want to unset all the key bindings, and then
global-set-key the bindings I want.)

Is this possible?

I have tried:
(global-unset-key    "\x00"     )
... through ...
(global-unset-key    "\xff"     )

I also tried:
(setq global-map nil)

Neither of these worked.  There are still over 2500 lines of bindings
when I run describe-bindings (in both Lisp Interaction and Fundamental
modes).

Thanks!

-Parke