the other forms of action, became obsolete in the federal courts after the adoption of the Federal Rules of Civil Procedure in 1938. Thirty-five states have moved to rules similar to the FRCP (see Civil procedure in the United States), which have replaced the various forms of action with the civil action. However, many states continue to recognize assumpsit as a common law or statutory cause of action or allow the use of the old "common counts" as causes of action. For example, California has a special "common counts" cause of action form (to be attached to an optional form complaint) based directly on the old common counts that were pleaded in assumpsit. Modern significance The traces of the law relating to assumpsit are still felt today, particularly in the law of contract and unjust enrichment. For example, consideration is only necessary in relation to simple contracts. Where a claimant brings an action in contract for non-performance of a promise contained in a deed, there is no need to show that the claimant supplied consideration for the promise. The reason for this is historical: where there was no deed, the correct action was assumpsit for nonfeasance; in the latter, in debt sur obligation''. These were two distinct forms of action with their own distinct procedural requirements. In the law of unjust enrichment, reference is still made to actions for money had and received and quantum meruit. The practice is often deprecated by English unjust enrichment scholars but is frequently encountered in Australia. References Legal history of England Civil procedure English contract law