The Court of Appeals was created on December 3, 1935 by virtue of Commonwealth Act No. 3 and formally organized on February 1, 1936. Its principal mandate is to exercise appellate jurisdiction on all cases not falling within the original and exclusive jurisdiction of the Supreme Court. Its decisions are final except when appealed to the Supreme Court on questions of law. It also exercises original jurisdiction on the issuance of writs of mandamus, prohibition, injunction, certiorari, habeas corpus and all other writs whether or not in aid of its appellate jurisdiction.