On November 19, 1883, the defendant in error, while walking on Church street, in the city of Detroit, was thrown to the ground, and received severe personal injuries, in consequence of a defect in the sidewalk. For these injuries, she, as a citizen of Ohio, brought her action in the circuit court of the United States against the city, and recovered a verdict and judgment for $10,000. 32 Fed. Rep. 37. The city alleges error; and its principal contention is that, under the rulings of the supreme court of Michigan, municipal corporations are not liable in damages for personal injuries of this nature, and that, such being the settled law of the state, it is binding upon the federal courts. This contention suggests two inquiries: First, what is the settled law of Michigan? and, second, if it be as claimed, is it binding upon the federal courts?

The answer to the first inquiry is easy and clear. The precise question was presented in 1870 to he supreme court of Michigan, in the case of Detroit v. Blackeby, 21 Mich. 84. In that case the injury resulted from a defect in the streets, and from failure to keep them in proper repair. Under the laws then in force, both the power and the duty of keeping streets in repair was vested in the city; but the supreme court held that this duty was to the public, and not to private individuals, the mere neglect of which was a non-feasance only, for which no private action in damages arose. The power of the legislature to create a liability to private suit was conceded; but it was decided that, in the absence of express action of the legislature creating such liability, the mere grant of the power, and the imposition of the duty, to keep streets in repair, was not sufficient to sustain a private action for injuries resulting from a failure to keep such streets in repair. This doctrine had never been departed from by the supreme court of that state; and no action had ever been taken by the legislature, up to the time of this accident, to change the rule of liability thus announced. In 1879 (No. 244, Laws 1879) an act of the legislature was passed for the collection of damages sustained by reason of defective public highways, streets, bridges, cross-walks, and culverts. That statute came before the supreme court for examination in the case of Detroit v. Putnam, 45 Mich. 263, 7 N. W. Rep. 815, and it was held—First, that 'a statutory liability created in derogation to common law cannot be enlarged by construction;' and, secondly, that the act, omitting sidewalks, left the law in respect to sidewalks not in repair as it was before, and that no private action against the city for damages springing from a defective sidewalk could be maintained. In Church v. Detroit, 64 Mich. 571, 31 N. W. Rep. 447, an act purporting to extend the liability of municipal corporations to the case of damages resulting from defective sidewalks was declared unconstitutional. Thus, by the concurrent action and judgment of the legislature and the supreme court of the state of Michigan, there was, up to and beyond the time of the injury complained of in this action, no liability on the part of a municipality for such injuries. The case of Detroit v. Chaffee, 70 Mich. 80, 37 N. W. Rep. 882, in no manner conflicts with this established rule. In that case a judgment had been obtained against the city in the United States circuit court for personal injuries caused by a defective sidewalk in front of a lot owned by Chaffee. The city had no right of appeal to this court, the judgment being under $5,000, and brought its action against Chaffee, the owner of the lot, under section 57, p. 614, Local Acts Mich. 1883, which provides that 'the common council shall have power to provide and ordain by ordinance that, whenever any side walk requires to be built or repaired, the said council may direct the board of public works to notify the owner, agent, or occupant of any lot or parcel of land in front of or adjacent to which such walk is required to be built or repaired, to build or repair the same, and that if such agent, owner, or occupant shall neglect, for a time to be specified in the ordinance, to do such building or repairing, it shall be the duty of the said board to at once do or cause the same to be done, and in such case the expense thereof shall be assessed upon such lot or parcel of land, and shall be a lien thereon until collected and paid in a manner to be prescribed in such ordinance; and the owner so neglecting to build or repair shall be liable to the city for all damages which shall be recovered against the city for any accident or injuries occurring by reason of such neglect, and also to prosecution in the recorder's court, and on conviction to be fined not to exceed five hundred dollars, and the penalties in the city charter else where provided.' A judgment in favor of the city was ordered. But this section of the statute was similar to one in force at the time of the decision in Detroit v. Blaceby . Laws Mich. 1865, p. 679, No. 325, § 1. There being no change in the statute in this respect, it cannot be held that any change was contemplated in the rule of liability by the legislation of 1883; and the decision in Detroit v. Chaffee was simply the enforcement of a right given by both the statutes of 1865 and 1883, springing out of a judgment not subject to the supervising control of the supreme court of the state. In answer to the first inquiry, it must therefore be affirmed that the law of Michigan is against any liability on the part of the city for injuries like those in this action.

The second inquiry must be answered in the affirmative. If it is a matter of local law, that law is obligatory upon the federal courts. It must be conceded that this adjudication as to the liability of a city for injuries caused by a defect in the sidewalks, the repair of which it has both the power and duty to provide for, is not in harmony with the general rule in this country, (2 Dill. Mun. Corp. §§ 1017, 1018,) nor in accord with the views expressed by this court. In Barnes v. District of Columbia, 91 U. S. 540, this court, after referring to the case from 21 Mich. supra, and the doctrine stated therein, observed that 'the authorities establishing the contrary doctrine, that a city is responsible for its mere negligence, are so numerous and so well considered that the law must be deemed to be settled in accordance with them;' citing in support a long list of authorities. The authorities which support a different view are collected in Hill v. Boston, 122 Mass. 344. But, even if it were a fact that the universal voice of the other authorities was against the doctrine announced by the supreme court of Michigan, the fact remains that the decision of that court, undisturbed by legislative action, is the law of that state. Whatever our views may be as to the reasoning or conclusion of that court is immaterial. It does not change the fact that its decision is the law of the state of Michigan, binding upon all its courts and all its citizens, and all others who may come within the limits of the state. The question presented by it is not one of general commercial law. It is purely local in its significance and extent. It involves simply a consideration of the powers and liabilities granted and imposed by legislative action upon cities within the state. While this court has been strenuous to uphold the supremacy of federal law, and the interpretation placed upon it by the federal courts, it has been equally strenuous to uphold the decisions by state courts of questions of purely local law. There should be, in all matters of a local nature, but one law within the state, and that law is not what this court might determine, but what the supreme court of the state has determined. A citizen of another state going into Michigan may be entitled under the federal constitution to all the privileges and immunities of citizens of that state; but, under that constitution, he can claim no more. He walks the streets and high ways in that state entitled to the same rights and protection as, but none other than, those accorded by its laws to its own citizens.

This question is not a new one in this court. In the case of Claiborne Co. v. Brooks, 111 U. S. 400, 4 Sup. Ct. Rep. 489, it was held that, when the settled decisions of the highest court of a state have determined the extent and character of the powers which its political and municipal organizations may possess, the decisions are authoritative upon the courts of the United States; and in the opinion it was observed: 'It is undoubtedly a question of local policy with each state what shall be the extent and character of the powers which its various political and municipal organizations shall possess, and the settled decisions of its highest courts on this subject will be regarded as authoritative by the courts of the United States; for it is a question that relates to the internal constitution of the body politics of the state.' What was there decided in reference to the powers is equally true as to the liabilities of a municipal corporation. The city of Detroit, in the discharge of its public duty in respect to keeping the streets and sidewalks in repair, is under no higher or different obligation to a citizen of Ohio than to one of the state of Michigan; and the measure of its liability under the statutes, as stated, is to be determined by the judgment of the supreme court of that state, and not by what our opinions might be as to the proper construction of those statutes. Reference may also be made to the recent case of Bucher v. Railroad Co., 125 U. S. 555, 8 Sup. Ct. Rep. 974, in which this court followed, against its own judgment of the law, the rulings of the supreme court of Massachusetts, and held that a party traveling on Sunday, and not for necessity or charity, in the cars of a railroad company, could not recover for injuries sustained by the negligence of the company, because he was himself thus violating the law of the state. Concluding the opinion of the court in that case, it is observed: 'It may be said generally that, wherever the decisions of the state courts relate to some law of a local character which may have become established by those courts, or has always been a part of the law of the state, that the decisions upon the subject are usually conclusive, and always entitled to the highest respect of the federal courts. The whole of this subject has recently been very ably reviewed in the case of Burgess v. Seligman, 107 U. S. 20, 2 Sup. Ct. Rep. 10. Where such local law or custom has been established by repeated decisions of the highest courts of a state, it becomes also the law governing the courts of the United States sitting in that state.' Nothing more need be added to express the views of this court on the question here presented. The judgment of the circuit court must be reversed, and the case remanded, with instructions to sustain the demurrer to the amended declaration.