In his inauguration speech of 1961 President John F. Kennedy evoked memories of the Nineteenth Century when he urged Americans to look to the future with optimism. What phrase did he use to suggest the pushing forward of boundaries?

The 1960s saw considerable unrest in the USA. On university campuses and elsewhere a rebellious counterculture of freedom flourished. By no means all of American society took part in this new lifestyle, and the 1970s saw a reaction to the radicalism of the 1960s. By 1980 another period of Republican government of the USA was looming.