The election of Abraham Lincoln in 1860 was the immediate cause of southern resolutions of secession. He was the nominee of the Republican party with an anti-slavery expansion platform, he refused to acknowledge the right to secession, and he would not yield federal property within Southern states.
The gestation period of a human, from time of conception to birth is approximately 9 months (266 days/38 Weeks). 9.5 months is calculated from the first day of the last menstrual period (280 days/40 Weeks).
In the low-risk pregnancy group, they estimate it to be between 38 and 39 weeks of gestation. In women 35 years of age and older, they estimate the optimal gestational age right at 39 weeks of gestation.In women with hypertension, they estimate the optimal gestational age to be between 39 weeks and 2 days and 40 weeks and 1 day.Finally, only women with diabetes had an optimal gestational age estimated to be greater than 40 weeks of gestation, between 40 and 41 weeks.Interestingly, this last group is the one that is commonly induced early owing to ongoing increased risk of stillbirth as well as concern for macrosomia.stimate the optimal gestational age of delivery with respect to maternal and neonatal outcomes. Although they are only powered to look at a few of the feasible outcomes, they consistently find that the overall optimal gestational age is less than 40 weeks of gestation.