Origin of Phrase "sea change"

Hanson, Douglas (dhanson@FORSYTH.ORG)
Fri, 17 Nov 1995 06:58:44 PST

I have seen and heard reference to this phrase in numerous articles and
radio news broadcasts, but I'll have to claim ignorance and admit that I
have little idea of what this phrase actually means - even when used in
context. Is it something like "changing tides" or "ebb and flow". Quite
frankly I am stumped. Can someone fill this clueless person in? Thanks.

Doug Hanson