<P> Newspaper editor John O'Sullivan is generally credited with coining the term manifest destiny in 1845 to describe the essence of this mindset , which was a rhetorical tone ; however , the unsigned editorial titled `` Annexation '' in which it first appeared was arguably written by journalist and annexation advocate Jane Cazneau . The term was used by Democrats in the 1840s to justify the war with Mexico and it was also used to divide half of Oregon with the United Kingdom . But manifest destiny always limped along because of its internal limitations and the issue of slavery , says Merk . It never became a national priority . By 1843 John Quincy Adams , originally a major supporter of the concept underlying manifest destiny , had changed his mind and repudiated expansionism because it meant the expansion of slavery in Texas . </P>
<P> Newspaper editor John O'Sullivan is generally credited with coining the term manifest destiny in 1845 to describe the essence of this mindset , which was a rhetorical tone ; however , the unsigned editorial titled `` Annexation '' in which it first appeared was arguably written by journalist and annexation advocate Jane Cazneau . The term was used by Democrats in the 1840s to justify the war with Mexico and it was also used to divide half of Oregon with the United Kingdom . But manifest destiny always limped along because of its internal limitations and the issue of slavery , says Merk . It never became a national priority . By 1843 John Quincy Adams , originally a major supporter of the concept underlying manifest destiny , had changed his mind and repudiated expansionism because it meant the expansion of slavery in Texas . </P>
who coined the phrase manifest destiny and what does it mean
who coined the phrase manifest destiny and what does it mean
Newspaper editor John O'Sullivan
Newspaper editor John O'Sullivan