In what year was the Constitution of England written?

The Kingdom of Britain does not have a constitution as a single document. The constitution in Britain is recognized as a set of different legal acts, invented at different times. These legal acts began to appear in the Middle Ages, for example, one of such acts was the “Magna Carta”. It appeared in 1215. Further, other manifestos were developed and used. That is, there is a clear set of laws and precedents that serve as a constitution.