of crime, sabotage, violence, or unlawful methods of terrorism as a means of accomplishing industrial or political reform" and for "voluntarily assembl[ing] with any society, group, or assemblage of persons formed to teach or advocate the doctrines of criminal syndicalism." Ohio Rev. Code Ann. ? 2923.13. He was fined $1,000 and sentenced to one to 10 years imprisonment. The appellant challenged the constitutionality of the criminal syndicalism statute under the First and Fourteenth Amendments to the United States Constitution, but the intermediate appellate court of Ohio affirmed his conviction without opinion. The Supreme Court of Ohio dismissed his appeal, sua sponte, "for the reason that no substantial constitutional question exists herein." It did not file an opinion or explain its conclusions. Appeal was taken to this Court, and we noted probable jurisdiction. 393 U.S. 948 (1968). We reverse.
