Abstract:

The actions of debt, covenant, detinue and account were the main forms of action involving contracts before the 14th century in England.But the rigidity of their procedures prevented them from providing sufficient remedies for the development of society.Assumpsit occurred in the 14th century and unified all the contract action after its extension over a long time.The contracts of Common Law originated in the evolution of the forms of actions.The early contract law also relied on tort theory, and the separation and competition of judicial powers in England in the Middle age improved the development of contract law.

Key words: contract, form of action, evolution