Well unlike in some other places the English monarchy hasn't generally been absolute since the high middle ages. The struggle between parliamentarism and the crown last for 400-500 years. So yeah there is no single all encompassing document because there was no single revolutionary event which would have necessitated it.
Britain always led the fight against absolutism in Europe (well more or less anyway..) so most of these constitutions that were designed to curtail the power of the monarch during the revolutions of the 1800s merely brought other countries inline with where Britain already was.
US is in a similar state.It was one of the first "democratic" states so its system if full of out of date anachronisms like the electoral college, the second amendment and near absolute freedom of speech (well yeah some are bad and some are good..).
Britain always led the fight against absolutism in Europe (well more or less anyway..) so most of these constitutions that were designed to curtail the power of the monarch during the revolutions of the 1800s merely brought other countries inline with where Britain already was.
US is in a similar state.It was one of the first "democratic" states so its system if full of out of date anachronisms like the electoral college, the second amendment and near absolute freedom of speech (well yeah some are bad and some are good..).