The ; is properly used in the following manner: I waned to stroll through the park today; than remembered I had an appointment with the chiropodist.

; is about all that's right in your sentence, Master GramMARian: You wanTed to stroll through the park but thEn you remembered, etc.

Sort of demonstrates my position that semi-colons are like loaded guns in the hands of drunken teenagers.

Well, in his defense, he indicated that he knows grammar. He didn't say he could spell.

Jack