[Cronos]

Thatcher was not talking of the EU. She said that the Euro, the common currency was a folly.

She was correct.

On the EU, it does makes sense -- it's kept the peace between numerous feuding countries for a half-century.

[D-fendr]

No, i believe she said that about the EU..

In her book - Statecraft - Lady Thatcher describes the EU as “perhaps the greatest folly of the modern era”.

She called Britain’s membership as “a political error of historic magnitude”.

http://news.bbc.co.uk/2/hi/uk_news/politics/1878097.stm