How do I clear the history list in csh/tcsh?

[Suresh Srinivasan]

Here's an easy question for you shell gurus:

I am running tcsh in a workstation environment, so I typically have
several concurrently running shells.  I assume the ~/.history file
is associated with the console.  But how can I clear the history
list of a specific shell/window?

Please email replies.  I'll post if there is interest.  Thanks.

--Suresh.