VANN, J.

At common law a male infant attains his majority when he becomes twenty-one years of age and all unexecuted contracts made by him before that date, except for necessaries, while not absolutely void are voidable at his election. The contract in question was executory in form and unexecuted in fact, and as the defendant was under age when it was made, his infancy is an absolute defense unless an answer is found in some of the questions raised by the learned counsel for the plaintiff.

It is insisted that the contract was for necessaries and, hence, was binding on the defendant although he was an infant. What are necessaries depends on circumstances to some extent and frequently involves a question of fact. While the facts in this case were stipulated, the stipulation does not state that the contract was for necessaries nor any circumstances from which that inference could be drawn as one of fact. The word "necessaries" as used in the law is a relative term, except when applied to such things as are obviously requisite for the maintenance of existence, and depends on the social position and situation in life of the infant as well as upon his own fortune and that of his parents. What would be necessary in a legal sense for an infant with ample means of his own might not be so for one with no means at all. The question in this case depends on the circumstances and situation in life of the defendant and they are not set forth in the stipulation, although it expressly states that it is "a full, complete and true statement of all the facts upon which the determination of the controversy and questions in difference depends."

A proper education is a necessary, but what is a proper education depends on circumstances. A common school education is doubtless necessary in this country, because it is essential to the transaction of business and the adequate discharge of civil and political duties. A classical or professional education, however, has been held not to come within the term. ( Middlebury College v. Chandler, 16 Vt. 683; Turner v. Gaither, 83 N.C. 357.) Still, circumstances not found in the cases cited may exist where even such an education might properly be found a necessary as matter of fact. Moreover, an infant living with his father or guardian who is able and willing to furnish him with every thing suitable and necessary to his position in life, cannot make a binding promise to pay even for necessaries. As was said by Chancellor WALWORTH in a case frequently cited: "An infant is liable for necessaries, suitable to his rank and condition, when he has no other means of obtaining them except by the pledge of his own personal credit. But if he is under the care of a parent or guardian, who has the means, and is willing to furnish him what is actually necessary, the infant can make no binding contract for any article whatever, without the consent of his legal protector and adviser." ( Kline v. L'Amoreux, 2 Paige, 419, 420.) The burden was upon the plaintiff to show that what it agreed to provide for the defendant was a necessary, and it was "bound, at his peril, to inquire and ascertain the real circumstances of the" defendant "and whether he is in a situation to bind himself by a contract for necessaries." (Id.) No proof on the subject was furnished. For aught that appears the defendant resided with a parent or guardian able and anxious to give him any kind of an education that he desired and that in defiance of parental authority he perversely took his own course to his injury and the overthrow of family discipline. In the absence of all facts relating to any of these subjects we think that a course of instruction in "Complete Steam Engineering" with five years within which to finish it was not a necessary within the meaning of the law.

The plaintiff also claims that the defendant is estopped from pleading his infancy because he represented in the subscription paper which constituted the contract that he was twenty-one years old when he signed it. This position cannot be sustained. The doctrine of estoppel is rarely if ever applied to infants. The action is on contract, not in tort. There is no suggestion of false representation or fraud in the complaint or stipulation, except that the latter sets forth that the defendant signed the subscription paper which stated his age as twenty-one years. No other representation was made. While an infant is liable for his torts, the action must rest solely on the wrong committed by him. The complaint in this action rests wholly on the written contract which is set forth at length, and the fact that the contract contains the statement as to age, with neither allegation nor proof that it was made with intent to defraud, does not "fix the character of the action as one ex delicto." ( Sparman v. Keim, 83 N.Y. 245. ) It is well settled in this state that in an action upon a contract made by an infant he is not estopped from pleading his infancy by any representation as to his age made by him to induce another person to contract with him. ( Studwell v. Shapter, 54 N.Y. 249; New York Building Loan Banking Co. v. Fisher, 23 App. Div. 363; Brown v. McCune, 5 Sandf. Super. Ct. 224.) To hold otherwise would in many cases deprive infants of the protection extended to them at an age when the mind and judgment are conclusively presumed to be immature and they need to be shielded from their own imprudence and folly. It would virtually overthrow the law upon the subject as it has existed for time out of mind.

The next claim of the plaintiff is that the defendant ratified the contract by acquiescence and by making a payment of $5.00 on the contract about three and one-half months after he became of age.

We have held that "mere acquiescence for three years after arriving at age without any affirmative act was not a ratification." ( Green v. Green, 69 N.Y. 553, 557.) "Mere acquiescence, however long, if short of the statutory period of limitations, is not sufficient, and an act of confirmation, if not equally solemn with the deed, must be of such a solemn and undoubted nature, of such a clear and unequivocal character, as to establish a clear intention to confirm the deed after a full knowledge that it was voidable." ( Irvine v. Irvine, 9 Wall. (U.S.) 617, 627.) After the last payment was made on the 5th of December, 1906, the defendant refused to pay anything more, although, as alleged in the complaint, the plaintiff demanded the monthly payments as they became due from time to time. Prior to the 22d of January, 1907, he returned the property lent him by the plaintiff under the contract, and it does not appear that he derived any benefit from the contract after he became of age or that he retained any benefit previously derived therefrom which could be returned. The claim of ratification, therefore, rests substantially on the fact that the defendant made a payment on an unexecuted contract between three and four months after he became of age.

"The defense of infancy is established by the decision and findings of the judge, with no fact in avoidance of it." ( Walsh v. Powers, 43 N.Y. 23, 27.) There was no express finding of fact in this case, but the complaint was dismissed. No fact in avoidance is presumed to have been found, and the presumption is that the trial court found that there was no ratification. ( Callanan v. Keeseville, A.C. L.C.R.R. Co., 199 N.Y. 268.) Ratification depends on intention and payment is merely evidence of intention. Assuming that the single payment of $5.00 made a few months after the defendant became of age when considered with such acquiescence as there was, would have supported a finding of fact that he thereby intended to ratify and did ratify the contract, there is no finding or stipulation to that effect. Payment was not ratification as matter of law. As was said by the Chief Judge in Parsons v. Teller ( 188 N.Y. 318, 326): "It is not the case of an executed contract, where failure of an infant to disaffirm within a reasonable time after becoming of age would of itself operate as a ratification. It required affirmative action by the deceased to impose the obligations of the contract upon her. The alleged ratification in this case is based on the fact that during Mrs. Smith's life she continued to make payments under the agreement. * * * The record is devoid of evidence, except the mere fact of the payments, tending to show that the deceased intended to recognize the legal obligations of the contract of 1890, and these payments, under the circumstances, we think, were insufficient for the purpose." Hence, payment does not necessarily show intention to ratify. It is not like an act in the nature of a fraud, such as the acceptance of benefits after arriving at age and then attempting to repudiate the contract. No benefit was accepted or retained by the defendant after he became twenty-one. He wrote nothing, said nothing and did nothing which bore on the question of intention, except to make one payment, which may have been owing to his sense of honor or gratitude on account of the instruction received while under age. As was said by Chief Justice NELSON in Millard v. Hewlett (19 Wend. 301, 302): "The contract urged upon him was never obligatory, or operative, as it has always been in his power to admit or reject it. It was not absolutely void, because he had the option to enforce it against the defendant; but it never was binding upon himself, as the defendant could at no time have enforced it against him. In confirmation of this view we may refer to the doctrine that requires an express promise, after full age, to bind the infant in respect to a voidable contract to pay a debt entered into before; a full acknowledgment or promise to pay, or even actual payment of part will not render him liable to pay the whole debt." After citing authorities the learned judge continued: "The reason is, that no legal liability or ground of action, capable of being enforced in a court of law, existed previously to the promise."

So it is said in 2 Page on Contracts, 1372: "By the weight of authority the rule in ratification of an infant's contracts, different from that in waiving the Statute of Limitations, is that a mere acknowledgment that the obligation has been incurred, or even a part payment thereon, is not a ratification. Even payment of interest, part payment of principal, and a mere acknowledgment of the debt, or a statement, `I owe a debt, and you will get your pay,' was held not to be a ratification. * * *" Mr. Greenleaf says: "An explicit acknowledgment of indebtedness, whether in terms, or by a partial payment, is not alone sufficient, for he may refuse to pay a debt which he admits to be due." (2 Greenleaf's Evidence [16th ed.], § 368.) Many authorities are cited by the learned authors in support of this proposition.

The burden of proving ratification rests on the one claiming under a voidable contract of an infant. In this case some evidence was produced on the subject, but it was not conclusive. The trial court did not expressly find that there was a ratification and did impliedly find that there was no ratification. This is conclusive upon us, for we cannot find a fact even if we think the trial court should have found it.

Finally, the plaintiff claims that the contract was not made in this state but in the state of Pennsylvania and that there is no evidence that infancy is a good defense in that state. We think that the facts stated show that the contract wherever made was to be performed by both parties substantially in this state and that it should be governed by its laws. Our courts will not enforce the contract of an infant against him, even if technically it was completed by acceptance in another state, when his promise was not only made here but entire performance by one party and substantial performance by the other was to be made here. Otherwise it would be easy to deprive an infant of the protection which our law affords him on grounds of public policy. Moreover, even if it were a Pennsylvania contract and its laws were to govern as to capacity to contract ( Union National Bank of Chicago v. Chapman, 169 N.Y. 538, 545), the presumption is that the common law of that state is the same as our own. There is no such presumption as to the statutes of a sister state, for they must be proved under proper allegations before the courts can take cognizance of them. The laws of foreign nations, with the exception of England prior to our independence, are facts to be alleged and proved. The same is true of the statutory law of the various states of the Union other than our own. In the absence of proof on the subject, however, the common law is presumed to prevail in all the states in which it is the foundation of their jurisprudence, such as New York and Pennsylvania, but not including those states which inherited or adopted the civil law, such as Louisiana. Our courts will, therefore, presume that the common law of a sister state originally colonized from England or formed from territory ceded by England, is the same as our own, in the absence of evidence to the contrary. While this rule may not obtain in all the states having the common law of England as the basis of its system, it prevails in the most of them, and is the well-settled law of this state. ( Southworth v. Morgan, 205 N.Y. 293, 296; Robb v. Washington Jefferson College, 185 N.Y. 485, 496; First National Bank v. National Broadway Bank, 156 N.Y. 459, 472; First National Bank of Meadville v. Fourth National Bank of N.Y. 77 N.Y. 320, 331; People ex rel. Lawrence v. Brady, 56 N.Y. 182, 191; Savage v. O'Neil, 44 N.Y. 298, 301; Ruse v. Mutual Benefit Life Insurance Co., 23 N.Y. 516, 522; Sherrill v. Hopkins, 1 Cow. 103, 109; Holmes v. Broughton, 10 Wend. 75, 79; Abell v. Douglass, 4 Den. 305, 309; Starr v. Peck, 1 Hill, 270; Stokes v. Macken, 62 Barb. 145, 149; White v. Knapp, 47 Barb. 549, 554; Throop v. Hatch, 3 Abb. Pr. 23; Holmes v. Mallett, 1 Morris (Iowa), 82; Legg v. Legg, 8 Mass. 99; 1 Elliott on Evidence, § 46; Lawson's Presumptive Evidence, 358; 1 Am. Eng. Encyc. of Law [2nd ed.], 282.)

As no fact was found or conclusively proved to avoid the effect of infancy, which was pleaded by the defendant and admitted by the plaintiff, the complaint was properly dismissed and it is unnecessary to consider the other defenses relied upon by the defendant.

The judgment should be affirmed, with costs.

CULLEN, Ch. J., HAIGHT, WERNER, WILLARD BARTLETT and CHASE, JJ., concur; GRAY, J., absent.

Judgment affirmed.