The underlying lawsuit was filed May 20, 2003, and the Effect followed within a few weeks; Mike Masnick (Techdirt) has the details:
Twenty years ago today, actress/singer Barbra Streisand sued photographer Kenneth Adelman for daring to photograph her coastal mansion as part of his (fascinating) project to photograph the entire west coast of the US from a helicopter to track erosion over time.
In 2002 this was an incredibly ambitious project by Adelman. It was before we all had widespread access to satellite imagery, and before the web worked the way it does today. Adelman set up a pretty incredible website which is still up today in all its 2002-era glory (though he has, as was part of the original plan, updated it with more modern photographs over time).
Either way, one of the thousands of photographs of the coastline include Barbara Streisand's compound:
