Official Journal of the Federation (Mexico) Official Journal of the Federation (Mexico) The (DOF; translated variously as the Official Journal of the Federation or else as Official Gazette of the Federation), published daily by the government of Mexico, is the main official government publication in Mexico. It was founded in September 28, 1848. Current issues express legally the political, economic and social institutions in Mexico, while the history of those same institutions can be read in older issues. The Official Journal is similar to other main governmental journals (as the United States "Federal Register" or the "Canada Gazette"), but they differ from each other because they
What Is and What Should Never Be and What Should Never Be" was performed live at Led Zeppelin concerts between 1969 and 1973. A live version taken from a performance at the Royal Albert Hall in 1970 can be seen on the "Led Zeppelin DVD". Another was included on disc two of the live triple album "How The West Was Won". Two more versions were included in BBC Sessions. What Is and What Should Never Be "What Is and What Should Never Be" is a song by English rock band Led Zeppelin. It was written by Jimmy Page and Robert Plant and was included as the second