In the old metrical romance of Huon of Bordeaux, Huon, having killed the son of Charlemagne, is required by the Emperor to perform various seeming impossibilities as the price of forgiveness. Huon starts upon the task, leaving twelve of his knights as hostages. /2/ He returns successful, but at first the Emperor is made to believe that his orders have been disobeyed.

Thereupon Charlemagne cries out, "I summon hither the pledges for Huon. I will hang them, and they shall have no ransom." /3/ So, when Huon is to fight a duel, by way of establishing the truth or falsehood of a charge against him, each party begins by producing some of his friends as hostages.

When hostages are given for a duel which is to determine the truth or falsehood of an accusation, the transaction is very near to the giving of similar security in the trial of a cause in court. This was in fact the usual course of the Germanic procedure. It will be remembered that the earliest appearance of law was as a subst.i.tute for the private feuds between families or clans. But while a defendant who did not peaceably submit to the jurisdiction of the court might be put outside the protection of the law, so that any man might kill him at sight, there was at first [249] no way of securing the indemnity to which the plaintiff was ent.i.tled unless the defendant chose to give such security. /1/

English customs which have been preserved to us are somewhat more advanced, but one of the noticeable features in their procedure is the giving of security at every step. All lawyers will remember a trace of this in the fiction of John Doe and Richard Roe, the plaintiff's pledges to prosecute his action. But a more significant example is found in the rule repeated in many of the early laws, that a defendant accused of a wrong must either find security or go to prison. /2/ This security was the hostage of earlier days, and later, when the actions for punishment and for redress were separated from each other, became the bail of the criminal law. The liability was still conceived in the same way as when the bail actually put his own body into the power of the party secured.

One of Charlemagne's additions to the Lex Salica speaks of a freeman who has committed himself to the power of another by way of surety. /3/ The very phrase is copied in the English laws of Henry I. /4/ We have seen what this meant in the story of Huon of Bordeaux. The Mirror of Justices /5/ says that King Canute used to judge the mainprisors according as the princ.i.p.als when their princ.i.p.als not in judgment, but that King Henry I. confined Canute's rule to mainprisors who were consenting to the fact.

As late as the reign of Edward III., Shard, an English judge, after stating the law as it still is, that bail are a prisoner's [250] keepers, and shall be charged if he escapes, observes, that some say that the bail shall be hanged in his place. /1/ This was the law in the a.n.a.logous case of a jailer. /2/ The old notion is to be traced in the form still given by modern writers for the undertaking of bail for felony. They are bound "body for body,"

/3/ and modern law-books find it necessary to state that this does not make them liable to the punishment of the princ.i.p.al offender if he does not appear, but only to a fine. /4/ The contract also differed from our modern ideas in the mode of execution. It was simply a solemn admission of liability in the presence of the officer authorized to take it. The signature of the bail was not necessary, /5/ and it was not requisite that the person bailed should bind himself as a party. /6/

But these peculiarities have been modified or done away with by statute, and I have dwelt upon the case, not so much as a special form of contract differing from all others as because the history of its origin shows one of the first appearances of contract in our law. It is to be traced to the gradual increase of faith in the honor of a hostage if the case calling for his surrender should arrive, and to the consequent relaxation of actual imprisonment. An ill.u.s.tration may be found in the parallel mode of dealing with the prisoner himself. His bail, to whom his body is supposed to be delivered, have a right to seize him at any time and anywhere, but he is allowed to go at large until [251]

surrendered. It will be noticed that this form of contract, like debt as dealt with by the Roman law of the Twelve Tables, and for the same motive, although by a different process, looked to the body of the contracting party as the satisfaction.

Debt is another and more popular candidate for the honors of priority. Since the time of Savigny, the first appearance of contract both in Roman and German law has often been attributed to the case of a sale by some accident remaining incomplete. The question does not seem to be of great philosophical significance.

For to explain how mankind first learned to promise, we must go to metaphysics, and find out how it ever came to frame a future tense. The nature of the particular promise which was first enforced in a given system can hardly lead to any truth of general importance. But the history of the action of debt is instructive, although in a humbler way. It is necessary to know something about it in order to understand the enlightened rules which make up the law of contract at the present time.

In Glanvill's treatise the action of debt is found already to be one of the well-known remedies. But the law of those days was still in a somewhat primitive state, and it will easily be imagined that a form of action which goes back as far as that was not founded on any very delicate discriminations. It was, as I shall try to show directly, simply the general form in which any money claim was collected, except unliquidated claims for damages by force, for which there was established the equally general remedy of trespa.s.s.

It has been thought that the action was adopted from the then more civilized procedure of the Roman law. A [252] natural opinion, seeing that all the early English law-writers adopt their phraseology and cla.s.sification from Rome. Still it seems much more probable that the action is of pure German descent. It has the features of the primitive procedure which is found upon the Continent, as described by Laband. /1/

The substance of the plaintiff's claim as set forth in the writ of debt is that the defendant owes him so much and wrongfully withholds it. It does not matter, for a claim framed like that, how the defendant's duty arises. It is not confined to contract.

It is satisfied if there is a duty to pay on any ground. It states a mere conclusion of law, not the facts upon which that conclusion is based, and from which the liability arises. The old German complaint was, in like manner, "A owes me so much."

It was characteristic of the German procedure that the defendant could meet that complaint by answering, in an equally general form, that he did not owe the plaintiff. The plaintiff had to do more than simply allege a debt, if he would prevent the defendant from escaping in that way. In England, if the plaintiff had not something to show for his debt, the defendant's denial turned him out of court; and even if he had, he was liable to be defeated by the defendant's swearing with some of his friends to back him that he owed nothing. The chief reason why debt was supplanted for centuries by a later remedy, a.s.sumpsit, was the survival of this relic of early days.

Finally, in England as in Germany, debt for the detention of money was the twin brother of the action brought for wrongfully withholding any other kind of chattel. The gist of the complaint in either case was the same.

It seems strange that this crude product of the infancy of law should have any importance for us at the present time. Yet whenever we trace a leading doctrine of substantive law far enough back, we are very likely to find some forgotten circ.u.mstance of procedure at its source. Ill.u.s.trations of this truth have been given already. The action of debt and the other actions of contract will furnish others. Debt throws most light upon the doctrine of consideration.

Our law does not enforce every promise which a man may make.

Promises made as ninety-nine promises out of a hundred are, by word of mouth or simple writing, are not binding unless there is a consideration for them. That is, as it is commonly explained, unless the promisee has either conferred a benefit on the promisor, or incurred a detriment, as the inducement to the promise.

It has been thought that this rule was borrowed from Roman law by the Chancery, and, after undergoing some modification there, pa.s.sed into the common law.

But this account of the matter is at least questionable. So far as the use of words goes, I am not aware that consideration is distinctly called cause before the reign of Elizabeth; in the earlier reports it always appears as quid pro quo. Its first appearance, so far as I know, is in Fleta's account of the action of debt, /1/ and although I am inclined to believe that Fleta's statement is not to be trusted, a careful consideration of the chronological order of the cases in the Year Books will show, I think, that the doctrine was fully developed in debt before any mention of it in equity can be found. One of the earliest [254]

references to what a promisor was to have for his undertaking was in the action of a.s.sumpsit. /1/ But the doctrine certainly did not originate there. The first mention of consideration in connection with equity which I have seen is in the form of quid pro quo, /2/ and occurs after the requirement had been thoroughly established in debt. /3/

The single fact that a consideration was never required for contracts under seal, unless Fleta is to be trusted against the great weight of nearly contemporaneous evidence, goes far to show that the rule cannot have originated on grounds of policy as a rule of substantive law. And conversely, the coincidence of the doctrine with a peculiar mode of procedure points very strongly to the probability that the peculiar requirement and the peculiar procedure were connected. It will throw light on the question to put together a few undisputed facts, and to consider what consequences naturally followed. It will therefore be desirable to examine the action of debt a little further. But it is only fair to admit, at the outset, that I offer the explanation which follows with great hesitation, and, I think, with a full appreciation of the objections which might be urged.

It was observed a moment ago, that, in order to recover against a defendant who denied his debt, the plaintiff had to show something for it; otherwise he was turned over to the limited jurisdiction of the spiritual tribunals. /4/ This requirement did not mean evidence in the modern sense. It meant simply that he must maintain his cause in one of the ways then recognized by law. These were three, the [255] duel, a writing, and witnesses.

The duel need not be discussed, as it soon ceased to be used in debt, and has no bearing on what I have to say. Trial by writing and by witnesses, on the other hand, must both be carefully studied. It will be convenient to consider the latter first and to find out what these witnesses were.

One thing we know at the start; they were not witnesses as we understand the term. They were not produced before a jury for examination and cross-examination, nor did their testimony depend for its effect on being believed by the court that heard it. Nowadays, a case is not decided by the evidence, but by a verdict, or a finding of facts, followed by a judgment. The oath of a witness has no effect unless it is believed. But in the time of Henry II. our trial by jury did not exist. When an oath was allowed to be sworn it had the same effect, whether it was believed or not. There was no provision for sifting it by a second body. In those cases where a trial by witnesses was possible, if the party called on to go forward could find a certain number of men who were willing to swear in a certain form, there was an end of the matter.

Now this seems like a more primitive way of establishing a debt than the production of the defendant's written acknowledgement, and it is material to discover its origin.

The cases in which this mode of trial was used appear from the early books and reports to have been almost wholly confined to claims arising out of a sale or loan. And the question at once occurs, whether we are not upon traces of an inst.i.tution which was already ancient when Glanvill wrote. For centuries before the Conquest Anglo-Saxon law /1/ had required the election of a certain [256] number of official witnesses, two or three of whom were to be called in to every bargain of sale. The object for which these witnesses were established is not commonly supposed to have been the proof of debts. They go back to a time when theft and similar offences were the chief ground of litigation, and the purpose for which they were appointed was to afford a means of deciding whether a person charged with having stolen property had come by it rightfully or not. A defendant could clear himself of the felony by their oath that he had bought or received the thing openly in the way appointed by law.

Having been present at the bargain, the witnesses were able to swear to what they had seen and heard, if any question arose between the parties. Accordingly, their use was not confined to disposing of a charge of felony. But that particular service identifies the transaction witnesses of the Saxon period. Now we know that the use of these witnesses did not at once disappear under Norman influence. They are found with their old function in the laws of William the Conqueror. /1/ The language of Glanvill seems to prove that they were still known under Henry II. He says that, if a purchaser cannot summon in the man from whom he bought, to warrant the property to him and defend the suit, (for if he does, the peril is shifted to the seller,) then if the purchaser has sufficient proof of his having lawfully bought the thing, de legittimo marcatu suo, it will clear him of felony. But if he have not sufficient suit, he will be in danger. /2/ This is the law of William over again. It follows that purchasers still used the transaction witnesses.

But Glanvill also seems to admit the use of witness to establish debts. /1/ As the transaction witnesses were formerly available for this purpose, I see no reason to doubt that they still were, and that he is speaking of them here also. /2/ Moreover, for a long time after Henry II., whenever an action was brought for a debt of which there was no written evidence, the plaintiff, when asked what he had to show for it, always answered "good suit,"

and tendered his witnesses, who were sometimes examined by the court. /3/ I think it is not straining the evidence to infer that the "good suit" of the later reports was the descendant of the Saxon transaction witnesses, as it has been shown that Glanvill's secta was. /4/

a.s.suming this step in the argument to have been taken, it will be well to recall again for a moment the original nature of the witness oath. It was confined to facts within the witnesses'

knowledge by sight and hearing. But as the purposes for which witnesses were provided only required their presence when property changed hands, the princ.i.p.al case in which they could be of service between the parties [258] to a bargain was when a debt was claimed by reason of the delivery of property. The purpose did not extend to agreements which were executory on both sides, because there no question of theft could arise. And Glanvill shows that in his time the King's Court did not enforce such agreements. /1/ Now, if the oath of the secta could only be used to establish a debt where the transaction witnesses could have sworn, it will be seen, readily enough, how an accident of procedure may have led to a most important rule of substantive law.

The rule that witnesses could only swear to facts within their knowledge, coupled with the accident that these witnesses were not used in transactions which might create a debt, except for a particular fact, namely, the delivery of property, together with the further accident that this delivery was quid pro quo, was equivalent to the rule that, when a debt was proved by witnesses there must be quid pro quo. But these debts proved by witnesses, instead of by deed are what we call simple contract debts, and thus beginning with debt, and subsequently extending itself to other contracts, is established our peculiar and most important doctrine that every simple contract must have a consideration.

This was never the law as to debts or contracts proved in the usual way by the defendant's seal, and the fact that it applied only to obligations which were formerly established by a procedure of limited use, [259] goes far to show that the connection with procedure was not accidental.

The mode of proof soon changed, but as late as the reign of Queen Elizabeth we find a trace of this original connection. It is said, "But the common law requires that there should be a new cause (i. e. consideration), whereof the country may have intelligence or knowledge for the trial of it, if need be, so that it is necessary for the Public-weal." /1/ Lord Mansfield showed his intuition of the historical grounds of our law when he said, "I take it that the ancient notion about the want of consideration was for the sake of evidence only; for when it is reduced into writing, as in covenants, specialties, bonds, etc., there was no objection to the want of consideration." /2/

If it should be objected that the preceding argument is necessarily confined to debt, whereas the requirement of consideration applies equally to all simple contracts, the answer is, that in all probability the rule originated with debt, and spread from debt to other contracts.

But, again, it may be asked whether there were no other contracts proved by witness except those which have been mentioned. Were there no contracts proved in that way to which the accidental consideration was wanting? To this also there is an easy answer.

The contracts enforced by the civil courts, even as late as Henry II., were few and simple. The witness procedure was no doubt broad enough for all the contracts which were made in early times. Besides those of sale, loan, and the like, which have been mentioned, I find but two contractual [260] obligations. These were the warranties accompanying a sale and suretyship which was referred to at the beginning of the Lecture. Of the former, warranty of t.i.tle was rather regarded as an obligation raised by the law out of the relation of buyer and seller than as a contract. Other express warranties were matters within the knowledge of the transaction witnesses, and were sworn to by them in Saxon times. /1/

But in the Norman period warranty is very little heard of, except with regard to land, and then it was decided by the duel. It so wholly disappeared, except where it was embodied in a deed, that it can have had no influence upon the law of consideration. I shall therefore a.s.sume, without more detail, that it does not bear upon the case.

Then as to the pledge or surety. He no longer paid with his body, unless in very exceptional cases, but his liability was translated into money, and enforced in an action of debt. This time-honored contract, like the other debts of Glanvill's time, could be established by witness without a writing, /2/ and in this case there was not such a consideration, such a benefit to the promisor, as the law required when the doctrine was first enunciated. But this also is unimportant, because his liability on the oath of witness came to an end, as well as that of the warrantor, before the foundations were laid for the rule which I am seeking to explain. A writing soon came to be required, as will be seen in a moment.

The result so far is, that the only action of contract in Glanvill's time was debt, that the only debts recovered [261]

without writing were those which have been described, and that the only one of these for which there was not quid pro quo ceased to be recoverable in that way by the reign of Edward III.

But great changes were beginning in the reign of Henry II. More various and complex contracts soon came to be enforced. It may be asked, Why was not the scope of the witness oath enlarged, or, if any better proof were forthcoming, why was not the secta done away with, and other oral testimony admitted? In any event, what can the law of Henry II.'s time have to do with consideration, which not heard of until centuries later?

It is manifest that a witness oath, which disposes of a case by the simple fact that it is sworn, is not a satisfactory mode of proof. A written admission of debt produced in court, and sufficiently identified as issuing from the defendant, is obviously much better. The only weak point about a writing is the means of identifying it as the defendant's, and this difficulty disappeared as soon as the use of seals became common. This had more or less taken place in Glanvill's time, and then all that a party had to do was to produce the writing and satisfy the court by inspection that the impression on the wax fitted his opponent's seal. /1/ The oath of the secta could always be successfully met by wager of law, /2/ that is, by a counter oath the part of the defendant, with the same or double the number of fellow-swearers produced by the plaintiff. But a writing proved to be the defendant's could not be contradicted. [262] /1/ For if a man said he was bound, he was bound. There was no question of consideration, because there was as yet no such doctrine. He was equally bound if he acknowledged all obligation in any place having a record, such as the superior courts, by which his acknowledgment could be proved. Indeed, to this day some securities are taken simply by an oral admission before the clerk of a court noted by him in his papers. The advantage of the writing was not only that it furnished better proof in the old cases, but also that it made it possible to enforce obligations for which there would otherwise have been no proof at all.

What has been said sufficiently explains the preference of proof by writing to proof by the old-fashioned witness oath. But there were other equally good reasons why the latter should not be extended beyond its ancient limits. The transaction witnesses were losing their statutory and official character. Already in Glanvill's time the usual modes of proving a debt were by the duel or by writing. /2/ A hundred years later Bracton shows that the secta had degenerated to the retainers and household of the party, and he says that their oath raises but a slight presumption. /3/

Moreover, a new mode of trial was growing up, which, although it was not made use of in these cases /4/ for a good while, must have tended to diminish the estimate set on the witness oath by contrast. This was the beginning of our trial by jury. It was at first an inquest of the neighbors [263] most likely to know about a disputed matter of fact. They spoke from their own knowledge, but they were selected by an officer of the court instead of by the interested party, and were intended to be impartial. /1/ Soon witnesses were summoned before them, not, as of old, to the case by their oath, but to aid the inquest to find a verdict by their testimony. With the advent of this enlightened procedure, the secta soon ceased to decide the case, and it may well be asked why it did not disappear and leave no traces.

Taking into account the conservatism of the English law, and the fact that, before deeds came in, the only debts for which there had been a remedy were debts proved by the transaction witnesses, it would not have been a surprise to find the tender of suit persisting in those cases. But there was another reason still more imperative. The defence in debt where there was no deed was by wager of law. /2/ A section of Magna Charta was interpreted to prohibit a man's being put to his law on the plaintiff's own statement without good witness. /3/ Hence, the statute required witness--that is, the secta--in every case of debt where the plaintiff did not rely upon a writing. Thus it happened that suit continued to be tendered in those cases where it had been of old, /4/ and as the defendant, if he did not admit the debt in such cases, always waged his law, it was long before the inquest got much foothold.

To establish a debt which arose merely by way of promise or acknowledgment, and for which there had formerly [264] been no mode of trial provided, you must have a writing, the new form of proof which introduced it into the law. The rule was laid down, "by parol the party is not obliged." /1/ But the old debts were not conceived of as raised by a promise. /2/ They were a "duty"

springing from the plaintiff's receipt of property, a fact which could be seen and sworn to. In these cases the old law maintained and even extended itself a little by strict a.n.a.logy.

But the undertaking of a surety, in whatever form it was clothed, did not really arise out of any such fact. It had become of the same nature as other promises, and it was soon doubted whether it should not be proved by the same evidence. /3/ By the reign of Edward III., it was settled that a deed was necessary, /4/ except where the customs of particular cities had kept the old law in force. /5/

This reign may be taken as representing the time when the divisions and rules of procedure were established which have lasted until the present day. It is therefore worth while to repeat and sum up the condition of the law at that time.

It was still necessary that the secta should be tendered in every action of debt for which no writing was produced. For this, as well as for the other reasons which have been mentioned, the sphere of such actions was not materially enlarged beyond those cases which had formerly been established by the witness-oath.

As suretyship was no [265] longer one of these, they became strictly limited to cases in which the debt arose from the receipt of a quid pro quo. Moreover there was no other action of contract which could be maintained without a writing. New species of contracts were now enforced by an action of covenant, but there a deed was always necessary. At the same time the secta had shrunk to a form, although it was still argued that its function was more important in contract than elsewhere. It could no longer be examined before the court. /1/ It was a mere survival, and the transaction witness had ceased to be an inst.i.tution. Hence, the necessity of tendering the witness oath did not fix the limit of debt upon simple contract except by tradition, and it is not surprising to find that the action was slightly extended by a.n.a.logy from its scope in Glanvill's time.

But debt remained substantially at the point which I have indicated, and no new action available for simple contracts was introduced for a century. In the mean time the inversion which I have explained took place, and what was an accident of procedure had become a doctrine of substantive law. The change was easy when the debts which could be enforced without deed all sprung from a benefit to the debtor.

The influence of the Roman law, no doubt, aided in bringing about this result. It will be remembered that in the reign of Henry II.

most simple contracts and debts for which there was not the evidence of deed or witness were left to be enforced by the ecclesiastical courts, so far as their jurisdiction extended. /2/ Perhaps it was this circ.u.mstance [266] which led Glanvill and his successors to apply the terminology of the civilians to common-law debts. But whether he borrowed it from the ecclesiastical courts, or went directly to the fountain-head, certain it is that Glanvill makes use of the cla.s.sification and technical language of the Corpus Juris throughout his tenth book.