Some of the similar physical features that Mexico (a country) and Kentucky (a State) shares are: both have borders formed by rivers, and are located over tectonic plates, that make both vulnerable to earthquakes. The main differences are the territory (Mexico almost 750 thousand sq mi whereas Kentucky 40 thousand sq mi), climate, topography, and biodiversity.
In an effort to relieve the caseload burden in the Supreme Court and to handle a dramatic increase in federal filings, Congress, in the Judiciary Act of 1891, established nine courts of appeals, one for each judicial circuit.