Great Britain is not an Island

[Ronin]

How many western European countries can claim to having changed from direct rule by a monarch to rule by a democratic parliament without blood being shed?

As others have mentioned, it was Britain which led the fight against the slave trade, banning it before any of the other major powers. A rather courageous step and one to be proud of.

Like it has already been stated Portugal banned the slave trade before England.

Also...Portugal went from a Fascist dictatorship government to a democracy through a bloodless revolution...not the same thing you were asking but close...

I must admit we killed our king

also we where one of the first 3 countries in Europe to abolish the death penalty .....ok..now I´m just bragging