Newspaper editor John O'Sullivan coined the term Manifest Destiny in 1845 to describe the essence of this mindset, which was a rhetorical tone. It 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.t 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.
For that reason, experts considered pregnancies to be full term at 37 weeks. Then in 2013 the American College of Obstetricians and Gynecologists (ACOG) and the Society for Maternal-Fetal Medicine (SMFM) reviewed the research and decided to change the definition of full term to 39 weeks.
â¢ Full term: Between 39 weeks and 40 weeks, six days. â¢ Late term: Between 41 weeks and 41 weeks, six days. â¢ Post term: 42 weeks and beyond. The definitions were developed at a workshop in 2012 that included representatives from the National Institute of Child Health and Human Development and other medical groups.Full-term' pregnancy gets a new, narrower definition. Generations of mothers-to-be have heard that babies born any time between 37 and 42 weeks of pregnancy were at term â meaning they were neither too early nor too late. But that is now officially outdated wisdom, two leading medical groups said Tuesday.